Yenni Y, Rifma R, Sulastri S. The Effectiveness of Principal Supervision in Increasing Elementary School Teachers’ Work Motivation. suluahpasaman [Internet]. 2026 Jul. 16 [cited 2026 Jul. 22];4(2):437-50. Available from: https://e-journal.stai-ydi.ac.id/index.php/suluhpasaman/article/view/1252