Ainun. “Improving Chemistry Learning Outcomes for Grade X Hydrocarbon Material Using the Method Student Teams Achievement Division (STAD)”. Co-Catalyst: Journal of Science Education Research and Theories 3, no. 1 (October 14, 2025): 39–50. Accessed April 13, 2026. https://jurnal.ut.ac.id/index.php/co-catalyst/article/view/13236.