AHMAD , B.; ZULFIQAR, A.; BAJWA, R. S. Studying the Effect of Problem-Based Learning on Mathematics Achievement of Elementary Students. Journal of Excellence in Social Sciences, [S. l.], v. 3, n. 2, p. 125–136, 2024. DOI: 10.69565/jess.v2024i3.246. Disponível em: https://journals.smarcons.com/index.php/jess/article/view/246. Acesso em: 4 jul. 2024.