Sahadi, Sahadi, Yasir Arafat, and Tri Widayatsih. “The Influence of Principal Leadership and Work Motivation on Teacher Work Discipline”. Edunesia : Jurnal Ilmiah Pendidikan 2, no. 2 (February 20, 2021): 367–386. Accessed May 18, 2021. https://www.edunesia.org/index.php/edu/article/view/131.