Permadi, A. (2015). PENGUKURAN MATURITY LEVEL CONTROL OBJECTIVE KE-5 DOMAIN DELIVERY AND SUPPORT : ENSURING SYSTEM SECURITY MENGGUNAKAN FRAMEWORK COBIT 4.1. Jurnal Matematika MANTIK, 1(1), 37–42. https://doi.org/10.15642/mantik.2015.1.1.37-42