Laudon, K. C., & Laudon, J. P. (2004). Management information systems: Managing the digital firm (8th ed.). Pearson/Prentice Hall.

Laudon, Kenneth C., and Jane Price Laudon. Management Information Systems: Managing the Digital Firm. 8th ed. Upper Saddle River, N.J. ; New Delhi: Pearson/Prentice Hall, 2004.

Laudon, Kenneth C., and Jane Price Laudon. Management Information Systems: Managing the Digital Firm. 8th ed. Pearson/Prentice Hall, 2004.