Gaya APA
Whitten, J, L. et al (2004).
Systems Analysis and Design Methods (Sixth - International).
Yogyakarta:
Pustaa Baru Press.
Gaya MLA
Whitten, Jeffery, L.. et al.
"Systems Analysis and Design Methods".
Sixth - International
Yogyakarta:
Pustaa Baru Press,
2004.
Text.