HERAWATI, H.; SIDIK, G. S. . Problem-Based Learning To Enhance Pupils’ Conceptual Understanding In Geometry. International Journal of Advance Research in Mathematics Education, [S. l.], v. 1, n. 1, p. 26–35, 2023. DOI: 10.56916/ijr.v1i1.469. Disponível em: https://ejournal.papanda.org/index.php/ijarme/article/view/469. Acesso em: 12 jan. 2026.