Marakas, G. M. (2003). Decision support systems in the 21st century (2nd ed.). Prentice Hall.

Marakas, George M. Decision Support Systems in the 21st Century. 2nd ed. Upper Saddle River, NJ ; New Delhi: Prentice Hall, 2003.

Marakas, George M. Decision Support Systems in the 21st Century. 2nd ed. Prentice Hall, 2003.