Saimun, Saimun, and Saima Rambe. “The Impact of School Principal Leadership and Teacher Work Behavior on Improving the Quality of Graduates at Junior High School, Percut Sei Tuan”. Jurnal Mantik 6, no. 1 (May 19, 2022): 466-471. Accessed June 27, 2026. https://www.ejournal.iocscience.org/index.php/mantik/article/view/2288.