Zakiya N, Simatupang U, Aulia Y, Marsidin S, Rifma R. Informational Supervision Approach as an Effort to Improve the Quality of Learning in Schools. IJEDS [Internet]. 5Jun.2023 [cited 18May2024];5(2):186-8. Available from: http://ijeds.ppj.unp.ac.id/index.php/IJEDS/article/view/408