Sahidin, Ujang, and Jujun Ratnasari. “Enhancing Cognitive Learning Outcomes in MA Al Manar Class XII MIA Students Using a Problem-Based Learning Method on Biotechnology Materials”. Report of Biological Education 3, no. 1 (June 30, 2022): 45–58. Accessed November 23, 2024. https://jurnal.ummi.ac.id/index.php/rebion/article/view/1677.