MANALU, Novita Sari Emelia; INJEN PARDAMEAN BUTAR BUTAR; SIMAMORA, Benjamin Albert. Pengaruh Model Pembelajaran Problem Based Learning Terhadap Hasil Belajar IPS Siswa Kelas IX. Jurnal Ilmu Pendidikan dan Sosial, [S. l.], v. 5, n. 1, p. 422–434, 2026. DOI: 10.58540/jipsi.v5i1.1892. Disponível em: https://www.putrapublisher.org/index.php/jipsi/article/view/1892. Acesso em: 22 jun. 2026.