kalakota, R. (1999). E- Business: Roadmap for success. Addison wesley.
Chicago-čujuhus (17. p.)kalakota, Ravi. E- Business: Roadmap for Success. Massachuse tts: Addison wesley, 1999.
MLA-čujuhus (9. p.)kalakota, Ravi. E- Business: Roadmap for Success. Addison wesley, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.