Fadhillah, Kharis. “Manajemen Mutu Pendidikan Islam Di Pesantren (Studi Di Pondok Modern Darussalam Gontor)”. At-Ta’dib 10, no. 1 (January 26, 2016). Accessed April 7, 2025. https://ejournal.unida.gontor.ac.id/index.php/tadib/article/view/333.