Sitorus, A. A. M., B. B. Lubis, L. Amelia, S. A. F. Harahap, Y. Meha, Y. Ardiansyah, and I. Nasution. “The Role of the Principal of SD Nur Ihsan in the Education Supervisor”. Edumaspul: Jurnal Pendidikan, Vol. 6, no. 2, Oct. 2022, pp. 1632-5, https://ummaspul.e-journal.id/maspuljr/article/view/4418.