Muhammad Nurkholis Kholik, M. Yunus Abu Bakar, and Ali Mas’ud. 2025. “Guru Sekumpul’s Character Education Thoughts: An Analytical Study of the Concept of Morality and the Formation of Insan Kamil”. Hayula: Indonesian Journal of Multidisciplinary Islamic Studies 9 (2):235-58. https://doi.org/10.21009/hayula.009.02.05.