Maysaroh M. Perbaikan Kompetensi Mengajar Guru Melalui Supervisi Kepala Sekolah Di MAN 1 Medan T.A. 2018/2019. jetl [Internet]. 2020 Dec. 6 [cited 2025 Aug. 8];2(2):10-6. Available from: https://pusdikra-publishing.com/index.php/jetl/article/view/60