Sinulingga, Albadi, Suprayitno Suprayitno, and Dian Pertiwi. “Professionalism of Physical Education Teachers: From the Leadership of School Principals, School Culture to Teacher Work Motivation”. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran 5, no. 2 (November 3, 2019): 296-311. Accessed May 3, 2024. https://ojs.unpkediri.ac.id/index.php/pjk/article/view/13113.