Jurnal, R.T. 2018. IMPLEMENTASI AUDIT SISTEM CONTACT CENTER MENGGUNAKAN KERANGKA KERJA COBIT 4.1 DOMAIN DELIVERY AND SUPPORT (Studi Kasus : PT Visionet International): Muhaimin Hasanudin. PETIR. 10, 1 (Dec. 2018). DOI:https://doi.org/10.33322/petir.v10i1.35.