Simatupang, M., Ajisman and Nasution, R. S. H. (2023) “Improving Student Learning Outcomes by Using the Problem Based Learning Method in Islamic Education Learning at SMA Negeri 2 Sibolga”, Jurnal Pendidikan Profesi Guru, 1(2), pp. 16–22. Available at: https://journal.ar-raniry.ac.id/ppg/article/view/6696 (Accessed: 23 February 2025).