RATNA DEWI, A. K. Implementasi Model Pembelajaran Problem Solving untuk Meningkatkan Hasil Belajar IPS. Journal of Education Action Research, [S. l.], v. 5, n. 1, p. 80–85, 2021. DOI: 10.23887/jear.v5i1.31859. Disponível em: https://ejournal.undiksha.ac.id/index.php/JEAR/article/view/31859. Acesso em: 23 feb. 2025.