Harahap, Rohana, Ahmad Saidi Hasibuan, and Rosmina Hasibuan. 2024. “Application of Problem Based Learning Model to Improve Learning Outcomes of Islamic Education Students at SD Negeri 0808 Aek Sorik”. Indonesian Journal of Education and Social Humanities 1 (3):91-98. https://journal.mgedukasia.or.id/index.php/ijesh/article/view/393.