RUTH MAYASARI SIMANJUNTAK; SITI SADAR SULASTRI LUMBAN BATU. THE IMPACT OF THE PROBLEM-BASED LEARNING MODEL ON IMPROVING MATHEMATICAL UNDERSTANDING AND CREATIVITY STUDENTS . European Journal of Humanities and Educational Advancements, [S. l.], v. 5, n. 2, p. 74-77, 2024. Disponível em: https://scholarzest.com/index.php/ejhea/article/view/4343. Acesso em: 11 apr. 2025.