Jumantini, Entin, and Santy Wijaya. “The Influence of Headmaster Supervision Role on Teachers’ Competences and Motivation and Its Implication on Teachers’ Performance”. Equilibrium: Jurnal Penelitian Pendidikan dan Ekonomi 17, no. 01 (January 31, 2020). Accessed July 24, 2026. https://journal.uniku.ac.id/index.php/Equilibrium/article/view/2597.