UMMI KALSUM; 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, [S. l.], v. 3, n. 1, p. 1–10, 2025. DOI: 10.33830/cocatalyst.v3i1.13245. Disponível em: https://jurnal.ut.ac.id/index.php/co-catalyst/article/view/13245. Acesso em: 6 feb. 2026.