Nizar , A., Nurdyansyah Nurdyansyah, and Akhtim Wahyuni. “Quality Management of Islamic Education in Hasan Langgulung’s Perspective: Manajemen Mutu Pendidikan Islam Dalam Perspektif Hasan Langgulung”. Proceedings of The ICECRS 6 (June 13, 2020). Accessed October 7, 2025. https://icecrs.umsida.ac.id/index.php/icecrs/article/view/376.