Rio Ricardo Damanik, and Putri Kemala Dewi Lubis. “The Effect of the Problem-Based Learning Model With Interactive Media on the Economics Learning Outcomes of Class X Students of SMA Negeri 7 Medan”. Jurnal Ilmiah Pendidikan Holistik (JIPH) 2, no. 1 (January 31, 2023): 17–28. Accessed July 5, 2026. https://journal.formosapublisher.org/index.php/jiph/article/view/2792.