Hidayat, Sony, and Olaitan Abiodun Josiah. “Experimental Study: The Effect of Problem-Based Learning on Students’ Chemistry Learning Outcomes in Thermochemistry Concepts”. Journal of Chemical Learning Innovation 3, no. 1 (April 6, 2026): 84–91. Accessed May 25, 2026. https://cahaya-ic.com/index.php/JoCLI/article/view/2996.