Ummi Kalsum, and Ai Mahmudatussa’adah. “Implementation of Discovery Learning on the Human Excretory System Material to Improve the Activeness and Learning Outcomes of Class VIII Students”. Co-Catalyst: Journal of Science Education Research and Theories 3, no. 1 (October 14, 2025): 1–10. Accessed March 31, 2026. https://jurnal.ut.ac.id/index.php/co-catalyst/article/view/13245.