Greenstein, M., & Vasarhelyi, M. A. (2002). Electronic commerce: Security, risk management, and control (2nd ed.). McGraw-Hill/Irwin.

Greenstein, Marilyn, and Miklos A. Vasarhelyi. Electronic Commerce: Security, Risk Management, and Control. 2nd ed. Boston: McGraw-Hill/Irwin, 2002.

Greenstein, Marilyn, and Miklos A. Vasarhelyi. Electronic Commerce: Security, Risk Management, and Control. 2nd ed. McGraw-Hill/Irwin, 2002.