Atun, Waldatun Thai’, M. Syadeli Hanafi, Nandang Faturohman, and Suryadi. “Servant Leadership, Supervision Competence, Teacher Performance and School Quality: Based on the Principal’s Leadership Perspective”. TEC EMPRESARIAL 19, no. 1 (January 9, 2024): 49–72. Accessed June 3, 2026. https://revistas.tec-ac.cr/index.php/tec_empresarial/article/view/364.