1.
Muliana H, Ramdani A, Kusmiyati K. Effect of Problem-Based Learning Model on Biology Learning Motivation and Conceptual Understanding. J. Pijar.MIPA [Internet]. 2025 Aug. 8 [cited 2025 Aug. 20];20(5):958-64. Available from: http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/9716