Amelia, A., A. W. Sembiring, E. E. Hasibuan, L. A. Tanjung, Y. A. A. Harahap, and T. Darmansah. “The Effectiveness of School Principals in Making Decisions on Professional Teacher Performance to Increase Student Success at School”. Continuous Education: Journal of Science and Research, vol. 4, no. 3, Dec. 2023, pp. 1-12, doi:10.51178/ce.v4i3.1659.