SEPTIA PUSPA, C. I.; SUNDAWA, D. Implementing Problem-Based Learning Models in Social Studies to Improving Students Moral Character. QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama, [S. l.], v. 15, n. 1, p. 49–60, 2023. DOI: 10.37680/qalamuna.v15i1.2157. Disponível em: https://ejournal.insuriponorogo.ac.id/index.php/qalamuna/article/view/2157. Acesso em: 13 nov. 2025.