Isticharoh A, Fauziah Y, Churrohman T. Principal Managerial System in Creating Quality Culture in SMP Muhammadiyah 3 Waru: Sistem Manajerial Kepala Sekolah dalam Menciptakan Budaya Mutu di SMP Muhammadiyah 3 Waru. icecrs [Internet]. 2020 Jun. 14 [cited 2025 Sep. 18];5. Available from: https://icecrs.umsida.ac.id/index.php/icecrs/article/view/406