A. Maria , Y., M. Fajar, and Afifah. “IMPLEMENTATION OF OBJECT ORIENTED INTEGRATED APPROACH TO DEVELOP INTEGRATED INFORMATION SYSTEM AT PT. SAPTA KARYA”. KHARISMA Tech, Vol. 15, no. 2, Sept. 2020, pp. 24-37, https://jurnal.kharisma.ac.id/kharismatech/article/view/157.