MINTAN, A. .; CHAIPICHIT, D. . Developing 6th Grade Students’ Mathematical Problem Solving Skill Basing on Polya Concept of Problem Solving Process together with STAD Technique of Cooperative Learning Management Process. Journal of Modern Learning Development, [S. l.], v. 5, n. 4, p. 145–158, 2020. Disponível em: https://so06.tci-thaijo.org/index.php/jomld/article/view/243692. Acesso em: 9 apr. 2025.