“Application of Class Supervision to Improve Professional Competency of Teachers at SMP Negeri 1 Padangsidimpuan”. Jurnal Intelek Insan Cendikia 1, no. 2 (April 7, 2024): 100–129. Accessed November 22, 2024. https://jicnusantara.com/index.php/jiic/article/view/112.