KARATAS, I.; BAKI, A. The effect of learning environments based on problem solving on students’ achievements of problem solving. International Electronic Journal of Elementary Education, [S. l.], v. 5, n. 3, p. 249–268, 2017. Disponível em: https://iejee.com/index.php/IEJEE/article/view/25. Acesso em: 18 apr. 2025.