Sriwahyuni, Erni, Iskandar Wiryokusumo, and Hari Karyono. “Keefektifan Model Pembelajaran Problem Based Learning Terhadap Motivasi Dan Hasil Belajar”. Journal of Education Technology 4, no. 1 (March 11, 2020): 80–87. Accessed November 30, 2024. https://ejournal.undiksha.ac.id/index.php/JET/article/view/24101.