Usman, Usman, et al. “The Effectiveness of Assertive Training in Enhancing Self-Confidence Through Sundrang Learning in Bugis Elementary Schools”. AL-ISHLAH: Jurnal Pendidikan, vol. 18, no. 1, Apr. 2026, pp. 1344-52, doi:10.35445/alishlah.v18i1.8412.