Udell, J. (2000). Practical internet groupware. O'Reilly; Mumbai : Shroff.
Chicago-čujuhus (17. p.)Udell, Jon. Practical Internet Groupware. Sebastopol CA: O'Reilly; Mumbai : Shroff, 2000.
MLA-čujuhus (9. p.)Udell, Jon. Practical Internet Groupware. O'Reilly; Mumbai : Shroff, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.