Safwandi, Safwandi, Aan Komariah, Asep Suryana, and Eka Prihatin. “Discipline-Based Servant Leadership Model for Effective School Principal Leadership: Conceptual Framework Development and Empirical Validation”. Jurnal Pembelajaran, Bimbingan, dan Pengelolaan Pendidikan 6, no. 2 (February 28, 2026): 13. Accessed September 23, 2026. https://journal3.um.ac.id/index.php/fip/article/view/8047.