MU’AINI, Mu’aini. PENINGKATAN KUALITAS PEMBELAJARAN IPS MELALUI PENERAPAN METODE PROBLEM BASED LEARNING DI SMP NEGERI 15 KOTA YOGYAKARTA. JIPSINDO (Jurnal Pendidikan Ilmu Pengetahuan Sosial Indonesia), [S. l.], v. 3, n. 1, p. 44–62, 2016. DOI: 10.21831/jipsindo.v3i1.9669. Disponível em: https://journal.uny.ac.id/index.php/jipsindo/article/view/9669. Acesso em: 10 may. 2025.