Leasa, Marleny, and Marthina Eralisa Wuarlela. “Cooperative Abilities and Cognitive Learning Outcomes: Study Group Investigation on Life Cycle Topic”. International Journal of Elementary Education 7, no. 1 (February 16, 2023): 162–168. Accessed May 10, 2024. https://ejournal.undiksha.ac.id/index.php/IJEE/article/view/56162.