Reynard, R., and W. Wella. “COBIT 5: Tingkat Kapabilitas Pada PT Supra Boga Lestari”. Ultima InfoSys : Jurnal Ilmu Sistem Informasi, Vol. 9, no. 1, June 2018, pp. 18 -23, doi:https://doi.org/10.31937/si.v9i1.712.