Gultom, S. N., F. . Azhar, and Erlisnawati. “The Effect of Principal’s Academic Supervision and Work Commitment on Teachers’ Teaching Performance at SMK N 1 Barumun, Padang Lawas District, North Sumatera Province”. Journal Corner of Education, Linguistics, and Literature, vol. 4, no. 001, Dec. 2024, pp. 739-51, https://journal.jcopublishing.com/index.php/jcell/article/view/498.