Kahar, A., I. Isumarni, N. Nurlaelah, S. Khalik, S. Hermansyah, and U. M. “Enhancing Student Character through Collaborative Learning: A Qualitative Study on the Contribution of University Students at SMP Muhammadiyah Pangsid”. Edumaspul: Jurnal Pendidikan, Vol. 9, no. 2, Oct. 2025, pp. 1386-95, doi:10.33487/edumaspul.v9i1.9179.