Gaya APA

Edwards, C. et al (2001). the Essence of information systems : sistem informasi / Chris Edwards, John Ward, Andy Bytheway . Yogyakarta: ANDI.

Gaya MLA

Edwards, Chris. et al. "the Essence of information systems : sistem informasi / Chris Edwards, John Ward, Andy Bytheway". Yogyakarta: ANDI, 2001. Buku.