1.
Manurung B, Sibuea N. Perubahan model kebijakan pelayanan kepala sekolah di SMA Negeri 20 Medan di era COVID-19. ijed [Internet]. 2021May27 [cited 2024May6];2(1):10-8. Available from: https://ojs.mahadewa.ac.id/index.php/ijed/article/view/1152