HS, D., Mutoharoh, M., Umalihayati, Hanafi, S. and Maarif, M. (2025) “School Principals and Supervisory Competence in Improving Instructional Quality: Perspective Literature Review”, Southeast Asian Journal of Science and Technology, 9(2), pp. 111-123. Available at: https://sajst.pti.edu.ph/online/index.php/sajst/article/view/387 (Accessed: 5June2026).