Mundrikah S, Senowarsito S, Maryanto M. IMPLEMENTATION OF THE PRINCIPAL’S MANAGERIAL FUNCTION IN IMPROVING NON-ACADEMIC STUDENT ACHIEVEMENT IN ELEMENTARY SCHOOLS. JDMP [Internet]. 2025 Nov. 4 [cited 2025 Nov. 10];10(1):119-27. Available from: https://journal.unesa.ac.id/index.php/jdmp/article/view/46573