Bibliografias temáticas / 21st centry

Índice

  1. Artigos de revistas
  2. Teses / dissertações
  3. Livros
  4. Capítulos de livros
  5. Trabalhos de conferências
  6. Relatórios de organizações

Literatura científica selecionada sobre o tema "21st centry"

Autor: Grafiati
Publicado: 25 de julho de 2024
Última modificação: 31 de julho de 2025

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos

Selecione um tipo de fonte:

Consulte a lista de atuais artigos, livros, teses, anais de congressos e outras fontes científicas relevantes para o tema "21st centry".

Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.

Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.

Artigos de revistas sobre o assunto "21st centry"

1

Cannon, Peter. "Aerospace Materials for the 21st Centry." JOM 40, no. 5 (1988): 10–14. http://dx.doi.org/10.1007/bf03258902.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Alekseev, P. N., A. Yu Gagarinskii, N. N. Ponomarev-Stepnoi, and V. A. Sidorenko. "Requirements for 21st centry nuclear power plants." Atomic Energy 88, no. 1 (2000): 1–9. http://dx.doi.org/10.1007/bf02673313.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Ding Choo Ming. "the role of pantun as cultural identity for nusantara in 21st centry and beyond." 동남아연구 18, no. 2 (2009): 87–126. http://dx.doi.org/10.21485/hufsea.2009.18.2.004.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

AP, Sundapa, Syamsurizal S, Irdawati, and Putri DH. "Interactive Multimedia Development Using Adobe Flash Cs6 to Improve Critical and Creative Thinking Skills of Class VIII Junior High School Students." International Journal of Current Science Research and Review 05, no. 11 (2022): 4187–93. https://doi.org/10.5281/zenodo.7318437.

Texto completo da fonte
Resumo:
<strong>ABSTRACT:</strong> Education has a huge impact on the existence of the 21st century. Improving the quality of human resources through education, from primary and secondary education to higher education is the key to being able to follow the development of the Industrial Revolution 4.0. This 21st century learning applies creativity, critical thinking, cooperation, problem solving, communication skills, community skills and character. The education system needs a new movement to apply skills in the era of the industrial revolution 4.0. One of the movements designed by the government is t
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Bebasari, Mardiani. "21st CENTURY EDUCATION 21st CENTURY EDUCATION." Journal Of Language Education and Development (JLed) 4, no. 1 (2022): 44–52. http://dx.doi.org/10.52060/jled.v4i1.784.

Texto completo da fonte
Resumo:
Tujuan dari penelitian ini dilatarbelakangi adanya perubahan yang terjadi pada dunia pendidikan di abad 21. Abad pertengahan yang ada pada abad 21 berkembangnya informasi dan teknologi dengan sangat cepat. Penelitian yang dilakukan dalam jurnal ini dengan menggunakan studi kepustakaan untuk melihat melalui tulisan dari buku mengenai pendidikan pada abad 21. Hasil penelitian dapat dilihat bahwa terdapat perubahan kondisi yang terjadi pada dunia pendidikan di abad 21. Kondisi yang terjadi pada abad 21 akan lebih ramai karena membutuhkan tantangan keterampilan yang baik dalam dunia pendidikan, ka
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Therborn, Göran. "Klass i det tjugoförsta århundradet." Arkiv. Tidskrift för samhällsanalys, no. 3 (2014): 67–97. http://dx.doi.org/10.13068/2000-6217.3.3.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

HARUTIUNYAN, Nazik, and Zarine MKHITARYAN. "PEDAGOGICAL FUTUROLOGY: 21ST CENTURY PROSPECTS." Cherkasy University Bulletin: Pedagogical Sciences, no. 1 (2020): 29–32. http://dx.doi.org/10.31651/2524-2660-2020-1-29-32.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Hadiyanto, Hadiyanto. "Observing the EFL Students’ 21st Century Skill Performance through Learning Activities of Research on the ELT Course." Indonesian Research Journal in Education |IRJE| 5, no. 2 (2021): 510–24. http://dx.doi.org/10.22437/irje.v5i2.16293.

Texto completo da fonte
Resumo:
Students’ 21st-century skills; soft skills, and hard skills were developed through student-centered e-learning (SCEL) activities in Research on the ELT Course. The current study was conducted to improve teachers’ instructional strategies in e-learning to enhance students’ 21st-century skills through their learning activities. Data were gained by observing and assessing 24 students’ performance in practicing 21st-century skills through SCEL activities. Teachers have successfully improved instruction techniques and encourage students to learn in a group, independently, using online resources, di
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

SIBINGA, CEES TH SMIT. "BLOOD TRANSFUSION IN THE 21ST CENTURY: THE BLOOD CENTRE." Vox Sanguinis 70, S3 (1996): 115–18. http://dx.doi.org/10.1111/j.1423-0410.1996.tb01382.x.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Starr, Karen J. "President's Message: 21st Century Skills, 21st Century Infrastructure." Information Technology and Libraries 30, no. 2 (2011): 54. http://dx.doi.org/10.6017/ital.v30i2.3002.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
Mais fontes

Teses / dissertações sobre o assunto "21st centry"

1

Lowery, Andrea. "A Study Investigating the Experience of Teachers’ Innovative Adaptation of Teaching and Learning." Digital Commons @ East Tennessee State University, 2021. https://dc.etsu.edu/etd/3976.

Texto completo da fonte
Resumo:
The purpose of this qualitative phenomenological study was to identify and examine the technology-based instructional strategies and digital tools being used by teachers in grades 3-5 that engage children in problem-solving learning opportunities. The study included 11 purposely sampled participants from a school district in East Tennessee who responded to questions during a Zoom interview. Seven of the participants submitted artifacts to provide examples of how they have incorporated technology and problem solving in their classrooms. Participants provided information about the digital tools
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Shopshear, Jennifer Lynne. "21st century skills for 21st century learners." CSUSB ScholarWorks, 2007. https://scholarworks.lib.csusb.edu/etd-project/3264.

Texto completo da fonte
Resumo:
The purpose of the project was to develop and implement a survey for the purpose of better understanding how teacher's attitude affect their ability to achieve success and overcome challenges associated with the implementation of a 1 on 1 Learning Program. This project was intended to increase awareness as to how teachers currently use technology, their attitudes about the technology they use, and their perceptions as to how students will use technology. Research in this study affirms this can improve teacher/student achievements; promote creativity and motivation through effective communicati
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Kirchoff, Jeffrey S. J. "Writing Centers as Literacy Sponsors in the 21st Century: Investigating Multiliteracy Center Theory and Practice." Bowling Green State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1352215261.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Popper, Rafael. "21st century foresight." Thesis, University of Manchester, 2011. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:151961.

Texto completo da fonte
Resumo:
21st Century Foresight offers a comprehensive study of ‘foresight’ as an instrument of policy. It covers the development of foresight methodology, the design of foresight activities and their evaluation. The thesis is based on eleven publications collectively making significant contributions to knowledge about global foresight practices and applications in different domains (i.e. research areas and socio-economic sectors). New conceptual frameworks developed include the Foresight Diamond, the SMART Futures Jigsaw and the Methods Combination Matrix (MCM), which can be used as tools for futures
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Andrews, Allison Parker. "21st Century Zen Garden." VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd/757.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Manns, Monica Rene. "Unfolding the Logic of a 21St Century Learning Center: Program Evaluation." W&M ScholarWorks, 2019. https://scholarworks.wm.edu/etd/1563898914.

Texto completo da fonte
Resumo:
Abstract Community Learning Centers (CLC) provide extended learning opportunities for students and families that live in fiscally under-resourced communities. These centers provide opportunities for academic enrichment. This includes an array of additional services, programs, and activities. The programs should be designed to reinforce and complement the academic program of participating students and provide the families of students with opportunities for dynamic and meaningful engagement in the education of the child. Significant research has been done on the effectiveness of community learn
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Zeren, Hakan. "Turkey toward the 21st century." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA302625.

Texto completo da fonte
Resumo:
Thesis (M.S. in International Resource Planning and Management) Naval Postgraduate School, June 1995.<br>Thesis advisor(s): Bertrand M. Patenaude, G. Robinson. "June 1995." Includes bibliographical references. Also available online.
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Kirk, Christopher J. "Pigments for the 21st century." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/12528.

Texto completo da fonte
Resumo:
Materials with potential for high temperature inorganic pigment applications (e.g. ceramics) have been synthesised using solid state methods and characterised using powder X-ray and neutron diffraction, magic angle spinning NMR, Mossbauer spectroscopy, UVNis spectroscopy and colour measurement techniques. A number of compounds containing tin (H) and niobium (V) have been modified and doped with various constituents to tailor and widen the colour properties of the bright yellow parent phases. The dark yellow (L*(91.28), a*(13.74), b*(54.76)) tin niobium oxide pyrochlores have been re-characteri
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Bitter, James. "Parenting for the 21st Century." Digital Commons @ East Tennessee State University, 2006. https://dc.etsu.edu/etsu-works/6115.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Charles, Nicholas. "Meliorism in the 21st Century." Kent State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=kent1586687311049744.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
Mais fontes

Livros sobre o assunto "21st centry"

1

Bangladesh Chemical Congress (2007 University of Dhaka and BCSIR). Bangladesh Chemical Congress 2006: 29th Annual Conference of Bangladesh Chemical Society, 9-11 March 2007 : theme chemistry in 21st centry. [Bangladesh Chemical Society, 2007.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Ravenscroft, Andrew, Stefanie Lindstaedt, Carlos Delgado Kloos, and Davinia Hernández-Leo, eds. 21st Century Learning for 21st Century Skills. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33263-0.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

United States. Dept. of Commerce, United States. Dept. of Education, United States. Dept. of Labor, National Institute for Literacy (U.S.), and United States. Small Business Administration, eds. 21st century skills for 21st century jobs. [Dept. of Commerce], 1999.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Mason, Sarah. 21st century bride. Little, Brown, 2002.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Curran, Giorel. 21st Century Dissent. Palgrave Macmillan UK, 2007. http://dx.doi.org/10.1057/9780230800847.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Bryant, Clifton, and Dennis Peck. 21st Century Sociology. SAGE Publications, Inc., 2007. http://dx.doi.org/10.4135/9781412939645.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Frey, Bruno S., and Christoph A. Schaltegger, eds. 21st Century Economics. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-17740-9.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Lindgren, Mats. 21st Century Management. Palgrave Macmillan UK, 2012. http://dx.doi.org/10.1057/9780230343290.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Schmidt, Sascha L., ed. 21st Century Sports. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50801-2.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

McCarthy, J. Michael, ed. 21st Century Kinematics. Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-4510-3.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
Mais fontes

Capítulos de livros sobre o assunto "21st centry"

1

Eichholz, Alice. "21st Century." In Gender in Transition. Springer US, 1989. http://dx.doi.org/10.1007/978-1-4684-5631-8_24.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Balinska-Ourdeva, Vessela. "21st Century Learners." In Decolonizing Global Citizenship Education. SensePublishers, 2015. http://dx.doi.org/10.1007/978-94-6300-277-6_15.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

McComas, William F. "“21st-Century Skills”." In The Language of Science Education. SensePublishers, 2014. http://dx.doi.org/10.1007/978-94-6209-497-0_1.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Wyndham, Constance. "21st century Orientalism." In A New Politics of Heritage Reconstruction in Afghanistan. Routledge, 2023. http://dx.doi.org/10.4324/9781003439028-9.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Miller, William B. "21st Century Evolution." In Cognition-Based Evolution. CRC Press, 2023. http://dx.doi.org/10.1201/9781003286769-3.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Feltrero, Roberto, Adina Ionescu, Saeta Hernando, and Cristina Sánchez. "21st-century skills." In Disinformation Debunked. Routledge, 2024. http://dx.doi.org/10.4324/9781003387404-11.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Batkin, Jane. "21st-Century Kids." In Childhood in Animation. Routledge, 2024. http://dx.doi.org/10.4324/9781003164296-7.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Kennedy, Teresa J., and Cheryl W. Sundberg. "21st Century Skills." In Springer Texts in Education. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43620-9_32.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Pattie, David. "The 21st Century." In Rock Music in Performance. Palgrave Macmillan UK, 2007. http://dx.doi.org/10.1057/9780230593305_8.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Hoshmand, A. Reza, and Po Chung. "21st century realities." In Service Leadership. Routledge, 2021. http://dx.doi.org/10.4324/9781003176565-2.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.

Trabalhos de conferências sobre o assunto "21st centry"

1

DeCourcey, Susan A. "Surety Bonds in the 21St Century." In SSPC 2003. SSPC, 2003. https://doi.org/10.5006/s2003-00015.

Texto completo da fonte
Resumo:
Abstract The trend toward full automation of the bond execution process is still in its early stages and much needs to be done in order to achieve the ideal methodology. However, a review of current developments is revealing about where we are today and where we need to go.
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Montes, Viviana Monterroza. "Educational Trends in 21st Century Education." In 2025 Institute for the Future of Education Conference (IFE). IEEE, 2025. https://doi.org/10.1109/ife63672.2025.11024991.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Sloss, David A., and Paul Green. "National Automotive Center 21st Century Truck (21T) Dual Use Safety Focus." In International Truck & Bus Meeting & Exposition. SAE International, 2000. http://dx.doi.org/10.4271/2000-01-3426.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Lisovetc, Irina. "The Modern Multi-Functional Cultural Center (Yeltsin Center) as a Platform for Dialogue Both Public & Private." In The Public/Private in Modern Civilization, the 22nd Russian Scientific-Practical Conference (with international participation) (Yekaterinburg, April 16-17, 2020). Liberal Arts University – University for Humanities, Yekaterinburg, 2020. http://dx.doi.org/10.35853/ufh-public/private-2020-11.

Texto completo da fonte
Resumo:
The article covers the modern multi-functional cultural centre as an institution of Russian culture of the 21st Century in the terms of the interaction of publicity and privacy. On the basis of the institutional approach in cultural theory and the philosophical and aesthetic analysis of the space of the cultural centre, the most important role of this institution in individual and personal assimilation of sociocultural values is substantiated. The objectives (programme) of such an institution, its chronotope and functionality are directed at the involvement of contemporaries into various forms
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Jones, Charles W. "21st Century Telescope." In 1986 Astronomy Conferences, edited by Lawrence D. Barr. SPIE, 1986. http://dx.doi.org/10.1117/12.963536.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

LaVallee, David, and Barry Grasso. "A satellite control center framework for the 21st century." In 9th Computing in Aerospace Conference. American Institute of Aeronautics and Astronautics, 1993. http://dx.doi.org/10.2514/6.1993-4471.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Carter, Mark, Magnus Olsson, Jan-Erik Gustavson, and Joe Ranero. "A 21st Century Warship With a 21st Century Propulsion System." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-437.

Texto completo da fonte
Resumo:
The Visby Class Corvette will enjoy the advantages of a Combined Diesel or Gas (CODOG) turbine arrangement in which the diesel engines are used for low-speed mine hunting and ASW missions, while the four turbines can be operated either individually or in pairs to provide cruise or high-speed dash capability. The integration of these features into a single gearbox, the design of the Allied Signal model TF50A turbine engine, and the integration of the CODOG system into the ship is discussed herein. Attention is focused on the unique design features which provide the “stealth” capabilities of thi
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Strunz, Ulrich Gabriel, and Christian Chlupsa. "OVERCOMING ROUTINE: A 21ST CENTURY SKILL FOR A 21ST CENTURY ECONOMY." In 51st International Academic Conference, Vienna. International Institute of Social and Economic Sciences, 2019. http://dx.doi.org/10.20472/iac.2019.051.040.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Gover, James, and Paul Huray. "Educating 21st Century Engineers." In 2007 IEEE Meeting the Growing Demand for Engineers and their Educators 2010-2020 International Summit. IEEE, 2007. http://dx.doi.org/10.1109/mgdete.2007.4760377.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Cárachová, Magdaléna. "21ST CENTURY EDUCATION TRENDS." In 12th International Conference on Education and New Learning Technologies. IATED, 2020. http://dx.doi.org/10.21125/edulearn.2020.1560.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.

Relatórios de organizações sobre o assunto "21st centry"

1

Kocherlakota, Narayana. 21st Century Macro. National Bureau of Economic Research, 2020. http://dx.doi.org/10.3386/w26791.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Harter, Earl W., and Jr. Central and South America: Challenges for the 21st Century. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada345629.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

DEPARTMENT OF THE ARMY WASHINGTON DC. Micom's RDE Center - Developing Technologies For The 21st Century. Defense Technical Information Center, 1997. http://dx.doi.org/10.21236/ada353527.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Sinnis, Constantine, Mark Benjamin Chadwick, Kimberly Carole New Scott, and Stephen Val Milton. LANSCE 21st Century Deterrence. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1608676.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Bowdon, W. G. Mahan in the 21st Century. Defense Technical Information Center, 1990. http://dx.doi.org/10.21236/ada437611.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Hopper, Darrel G. 21ST Century Aerospace Defense Displays. Defense Technical Information Center, 1999. http://dx.doi.org/10.21236/ada430161.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Beaumont, Keaton L. Developing 21st Century Senior Leaders. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada519853.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Piechota, Thomas C. Water in the 21st Century. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1064445.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Van Drie, Mark. Infantry in the 21st Century. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada377620.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Tetlow, Gemma, and Daniel Chandler. Retirement in the 21st century. IFS, 2014. http://dx.doi.org/10.1920/re.ifs.2014.0098.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
Você também pode estar interessado nas extensas listas de trabalhos sobre o assunto "21st centry":
Artigos de revistas Teses / dissertações Livros
Oferecemos descontos em todos os planos premium para autores cujas obras estão incluídas em seleções literárias temáticas. Contate-nos para obter um código promocional único!

Vá para a bibliografia