Sianturi, R., Napitupulu, E., & Purba, S. (2020). THE RELATIONSHIP BETWEEN WORK MOTIVATION AND ACADEMIC SUPERVISION WITH THE TEACHERS' PERFORMANCE AT PANGKATAN VOCATIONAL SCHOOL 1.. JURNAL PROINTEGRITA, 3(3), 432-439. Retrieved from http://jurnal.darmaagung.ac.id/index.php/jurnalprointegrita/article/view/401