YUNIWATI, Y.; MASRURI, Muhsinatun Siasah. PENINGKATAN KUALITAS PEMBELAJARAN PPKN MELALUI PENERAPAN PROBLEM BASED LEARNING DI SMP. Harmoni Sosial: Jurnal Pendidikan IPS, [S. l.], v. 3, n. 2, p. 199–210, 2016. DOI: 10.21831/hsjpi.v3i2.7947. Disponível em: https://jurnal.uny.ac.id/index.php/hsjpi/article/view/7947. Acesso em: 14 may. 2025.