Zaini, Muhammad Ridwan, et al. “Implementation of Problem Based Learning to Improve Student Learning Outcomes in Islamic Education at SD Negeri 105432 Kp. Ampera”. KOPELMA: Scientific Journal of Education and Teaching, vol. 1, no. 1, June 2024, pp. 172-9, https://journal.mgedukasia.or.id/index.php/kopelma/article/view/340.