Liyarni. “Implementation of Problem Based Learning Model to Overcome Low Student Learning Motivation in Islamic Education Learning at SMP Negeri 1 Tigo Nagari”. Jurnal Profesi Guru Indonesia, vol. 1, no. 4, Dec. 2024, pp. 58-65, https://journal.mgedukasia.or.id/index.php/jpgi/article/view/305.