Suprapti, Fajrie N, Ismaya EA, Kurniati D. The Effect of Directive Supervision on the Managerial Competence of Principals in Developing KOSP in Elementary Schools. J TECHNOL HUM [Internet]. 2022Jul.2 [cited 2024Dec.22];3(1):74-81. Available from: https://ejournal.jthkkss.com/index.php/jthkkss/article/view/99