Subekti I, Syukri A, Anwar K. Strategic Management In Improving The Effectiveness of Private Islamic Religious College In Kepulauan Riau. tanjak.j.of.education.and.teach [Internet]. 2024 Aug. 30 [cited 2026 Jun. 8];5(2):64-77. Available from: https://ejournal.stainkepri.ac.id/index.php/tanjak/article/view/1407