Arsyad, Muhammad, Saut Guna, and Sebastian Barus. “Enhancing Chemistry Education through Problem-Based Learning: Analyzing Student Engagement, Motivation, and Critical Thinking”. International Journal of Curriculum Development, Teaching and Learning Innovation 2, no. 3 (July 27, 2024): 110–117. Accessed April 18, 2026. https://trigin.pelnus.ac.id/index.php/Curriculum/article/view/178.