Kalakota, R., & Whinston, A. B. (2009). Frontiers of Electronic Commerce (12th ed.). Pearson Education.
Cita Chicago (17th ed.)Kalakota, Ravi, i Andrew B. Whinston. Frontiers of Electronic Commerce. 12th ed. New Delhi: Pearson Education, 2009.
Cita MLA (9th ed.)Kalakota, Ravi, i Andrew B. Whinston. Frontiers of Electronic Commerce. 12th ed. Pearson Education, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.