Purnomo D, Wulandari D, Wulandari F. STRENGTHENING SCHOOL PRINCIPAL SUPERVISION, LEARNING ORGANIZATION, AND CREATIVITY IN IMPROVING CLASSROOM MANAGEMENT EFFECTIVENESS . ECO EDU ENTRE [Internet]. 2025Dec.5 [cited 2026Apr.19];5(3):830-7. Available from: https://ije3.esc-id.org/index.php/home/article/view/418