USMAN, Luki. MENINGKATKAN HASIL BELAJAR PESERTA DIDIK PADA MATERI MASA KEEMASAN ISLAM ERA DAULAH ABBASIYAH MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING. Al-Minhaj : Jurnal Pendidikan Islam, [S. l.], v. 7, n. 1, p. 132–141, 2024. Disponível em: https://journal.iaingorontalo.ac.id/index.php/alminhaj/article/view/6180. Acesso em: 14 oct. 2025.