Gaya APA

Bytheway, C, E, J, W, A. (1995). The Essence of Information Systems Sistem Informasi (edisi ke 1). Jogyakarta: CV. Andi Offset.

Gaya MLA

Bytheway, Chris, Edwards,, John, Ward,, Andy. "The Essence of Information Systems Sistem Informasi". edisi ke 1 Jogyakarta: CV. Andi Offset, 1995. Text.