Hoffer, J. A., George, J. F., & Valacich, J. S. (2002). Modern Systems Analysis & Design (3rd ed.). Pearson Education.

Hoffer, Jeffrey A., Joey F. George, and Joseph S. Valacich. Modern Systems Analysis & Design. 3rd ed. New Delhi: Pearson Education, 2002.

Hoffer, Jeffrey A., et al. Modern Systems Analysis & Design. 3rd ed. Pearson Education, 2002.