Delfauzul, Delfauzul, Wakhinuddin Simatupang, and Hasan Maksum. “Contribution of Principal and Supervision on the Performance of Teacher Motivation Smkn 1 Palembayan”. International Journal of Educational Dynamics 3, no. 2 (July 21, 2021): 1-4. Accessed May 19, 2024. http://ijeds.ppj.unp.ac.id/index.php/IJEDS/article/view/312.