Lubis, Hasan Hamzah, Suhendri Suhendri, and Muhammad Sapii Harahap. “Basic Concepts of Ethics and the Teaching Profession”. Edumaspul: Jurnal Pendidikan 8, no. 1 (March 1, 2024): 2311-2317. Accessed December 9, 2025. https://jurnal.unimen.cloud/maspuljr/article/view/8200.