| Catálogo | Tipo | Cita |
|---|
| BB | Cheung C. M., Lee M. K. (2001). Trust in Internet shopping, instrument development and validation through classical and modern approaches. "Journal of Global Information Management", 9(39), 23-35 |
| BB | Hagel, John. Net gain : expanding markets through virtual communities / John Hagel III, Arthur G. Armstrong. Boston, Mass. : Harvard Business School Press, cop. 1997 |
| [Roble] | BB | Rheingold, Howard. La comunidad virtual : una sociedad sin fronteras / Howard Rheingold. Barcelona : Gedisa, 1996 |