Romatua, Pittor, Herianto, and Saddam Husein Nasution. 2024. “Application of the Problem Based Learning Model to Learning Achievement in Islamic Religious Education at SD Negeri 100808 Aek Nabara”. MADINA : Journal of Islamic Studies 1 (2):126-31. https://journal.mgedukasia.or.id/index.php/madina/article/view/360.