THE PRINCIPAL’S ROLE AS A LEADER IN IMPROVING THE QUALITY OF TEACHER PERFORMANCE AT YABIS BONTANG INTEGRATED ISLAMIC ELEMENTARY SCHOOL . unmul. civ. edu. j. [Internet]. 2022 Jul. 30 [cited 2026 Aug. 10];4(1):32-9. Available from: https://jurnal.fkip.unmul.ac.id/index.php/ucej/article/view/1237