1. Ajzen I., & Fishbein M. (1980). Understanding attitudes and predicting social behavior. Englewood Cliffs, NJ: Prentice-Hall.
2. Borgonovi E. (1996). Principi e sistemi aziendali per le pubbliche amministrazioni. Milano: Egea.
3. Dahl R.A. (1961). Who governs? Democracy and power in an american city. New Haven: Yale University Press.
4. Perceived Usefulness, Perceived Ease of Use, and User Acceptance of Information Technology
5. User Acceptance of Computer Technology: A Comparison of Two Theoretical Models