Kalih, I Ketut. “PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED INSTRUCTION UNTUK MENINGKATKAN PRESTASI BELAJAR PPKn”. Indonesian Journal of Educational Research and Review 3, no. 1 (April 20, 2020): 40–46. Accessed July 17, 2024. https://ejournal.undiksha.ac.id/index.php/IJERR/article/view/24490.