ICFAI. (2003). INFORMATION TECHNOLOGY AND SYSTEMS. ICFAI BOOKS.
Chicago Style aipamenaICFAI. INFORMATION TECHNOLOGY AND SYSTEMS. HYDRABAD: ICFAI BOOKS, 2003.
MLA aipamenaICFAI. INFORMATION TECHNOLOGY AND SYSTEMS. ICFAI BOOKS, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.