1.
Kusuma WW, Hafifi H. Meningkatkan Prestasi dan Motivasi Belajar Melalui Model Pembelajaran Problem Based Learning (PBL) Dalam Pelajaran Ekonomi. JIPMHT [Internet]. 2022 Jan. 24 [cited 2025 Jul. 31];5(2):19-27. Available from: https://journal.thamrin.ac.id/index.php/jipmht/article/view/667