Imam Azhar, Zainul Fuad. Structured Flexibility in Ummi Method Quality Assurance: Balancing Control and Contextual Adaptation Across Islamic Educational Institutions . Madinah.JSI [Internet]. 2026 May 17 [cited 2026 Jul. 28];13(1):160-81. Available from: https://ejournal.iai-tabah.ac.id/madinah/article/view/4810