Turban, Efraim, Jay A. Aronson, and Ting-Peng Liang. Decision Support Systems and Intelligent Systems. Upper Saddle River, NJ: Pearson Prentice Hall, 2005.

McElroy, Debbie, and Efraim Turban. "Using Smart Cards in Electronic Commerce." International Journal of Information Management 18, no. 1 (1998): 61-72.