AGNES M. GONI; MARIEN PINONTOAN. PROBLEM BASED LEARNING MODEL TO IMPROVE CRITICAL THINKING SKILLS IN LEARNING MATHEMATICS. European Journal of Research Development and Sustainability, [S. l.], v. 5, n. 1, p. 41-49, 2024. Disponível em: https://scholarzest.com/index.php/ejrds/article/view/4231. Acesso em: 8 nov. 2024.