Laiv, Kappey, and Mardhatillah Mardhatillah. “PRINCIPLE MANAGERIAL COMPETENCE FOR IMPROVING THE QUALITY OF TEACHERS”. Sensei International Journal of Education and Linguistic 2, no. 1 (February 5, 2022): 20–32. Accessed July 26, 2026. https://www.sijel-journal.sensei-journal.com/jbo/article/view/111.