Modern systems analysis and design / Jeffrey A. Hoffer ; Joey F. George ; Joseph S. Valacich. (2003). Upper Saddle River, NJ: Prentice-Hall, c.
Modern systems analysis and design / Jeffrey A. Hoffer ; Joey F. George ; Joseph S. Valacich. 3rd ed.. Upper Saddle River, NJ: Prentice-Hall, c, 2003. Buku Wajib.