Pandiangan, Saut Maruli Tua, Josua Alexander Gultom, Dian Ariani, Donny Dharmawan, and Ribka Sari Butar-Butar. “Effect of Problem-Based Learning Model on Learning Outcomes in Microeconomic Course”. Edumaspul: Jurnal Pendidikan 7, no. 2 (October 1, 2023): 5572-5575. Accessed December 9, 2025. https://jurnal.unimen.cloud/maspuljr/article/view/7283.