SOEKISNO, B. A.; KUSUMAH, Y. S.; SABANDAR, J. Using Problem-Based Learning to Improve College Students’ Mathematical Argumentation Skills. International Journal of Contemporary Educational Research, [S. l.], v. 2, n. 2, p. 118–129, 2015. Disponível em: https://ijcer.net/index.php/pub/article/view/36. Acesso em: 22 nov. 2024.