John Zysman, Arnaud Costinot and Alexander (2024) “THE INFLUENCE OF SCHOOL PRINCIPALS’ GUIDANCE AND SUPERVISION PATTERNS ON IMPROVING DISCIPLINE OF PUBLIC ELEMENTARY SCHOOL TEACHERS IN BINJAI CITY”, Journal of Educational Management, Learning Center and Social Knowledge, 1(2), pp. 68–74. Available at: https://jedle.org/index.php/ojs/article/view/9 (Accessed: 1 June 2026).