Tobing, L. L., T. Manullang, I. H. L. Gaol, M. K. Simanjuntak, and R. M. Simamora. “Evaluative Study of Lecturer Competence in the Department of XYZ in Insitut Agama Kristen Negeri Tarutung”. QALAMUNA: Jurnal Pendidikan, Sosial, Dan Agama, Vol. 15, no. 2, July 2023, pp. 515-32, doi:10.37680/qalamuna.v15i2.2691.