Baharuddin, Ahmad Dalil Tambak, and Sopiah Hasibuan. “Improving Student Learning Outcomes in Islamic Education Material Using Problem Based Learning Model at SMP Negeri 3 Silangkitang”. KOGNITIF: Jurnal Ilmiah Pendidikan dan Keguruan 1, no. 1 (June 30, 2024): 157–164. Accessed June 27, 2025. https://journal.mgedukasia.or.id/index.php/kognitif/article/view/338.