Mahdalena Nasution. “PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING DALAM MENINGKATKAN HASIL BELAJAR PAI”. Jurnal Siklus: Penelitian Tindakan Kelas (PTK) 1, no. 1 (August 20, 2023): 135–147. Accessed April 16, 2026. https://ejournal.edutechjaya.com/index.php/siklus/article/view/133.