PONSA, Angela Carolina; WATI, Tri Linggo. Problem-Based Learning Model to Increase Self-Efficacy of Grade IV Elementary School Students. Cokroaminoto Journal of Primary Education, [S. l.], v. 8, n. 2, p. 833–847, 2025. DOI: 10.30605/cjpe.822025.6244. Disponível em: https://e-journal.my.id/cjpe/article/view/6244. Acesso em: 27 jul. 2025.