MOHAMMAD NAFIS ABDUL ROUF; TIMING MERAWATI; ABDUL AZIS MASYHURI; NURUL HIDAYATI. The Effectiveness of Using Problem Based Learning Model to Improve Students Problem Solving Ability and Learning Motivation. International Journal of Geography, Social, and Multicultural Education, [S. l.], v. 3, n. 1, p. 1–10, 2025. DOI: 10.26740/ijgsme.v3n1.p1-10. Disponível em: https://journal.unesa.ac.id/index.php/ijgsme/article/view/35400. Acesso em: 15 dec. 2025.