Aisyah, S., K. , K, and N. Jannah. “The The Influence of the Internal Auditor’s Performance on the Effectiveness of the Internal Control System: Empirical Study at Islamic College in Medan”. Edumaspul: Jurnal Pendidikan, Vol. 7, no. 1, Mar. 2023, pp. 1843-57, doi:10.33487/edumaspul.v7i1.6436.