The Improvement of Mathematical Problem Solving Ability and Self-Efficacy Students through Problem-Based Learning Model. International Journal of Scientific Research and Management (IJSRM), [S. l.], v. 8, n. 05, p. 1408–1413, 2020. DOI: 10.18535/ijsrm/v8i05.el05. Disponível em: https://ijsrm.net/index.php/ijsrm/article/view/2743. Acesso em: 23 nov. 2024.