Harahap, A. M., and A. Ikhwan. “Implementation of Information Technology Governance in Man 1 Medan Using the Cobit 5 Framework”. Sinkron : Jurnal Dan Penelitian Teknik Informatika, vol. 7, no. 1, Jan. 2023, pp. 241-6, doi:10.33395/sinkron.v8i1.11936.