N. H. Utama and B. M. Nasrowi, “Cooperative Learning and Social Skills Development in Elementary Schools: A Systematic Review”, SYMPHONIA, vol. 1, no. 2, pp. 94–107, May 2026, Accessed: Jul. 06, 2026. [Online]. Available: https://darulilmijournal.com/index.php/symphonia/article/view/167