Udell, J. (2000). Practical internet groupware. O'Reilly; Mumbai : Shroff.
Tohutoru Kātū Chicago (17th ed.)Udell, Jon. Practical Internet Groupware. Sebastopol CA: O'Reilly; Mumbai : Shroff, 2000.
Tohutoro MLA (9th ed.)Udell, Jon. Practical Internet Groupware. O'Reilly; Mumbai : Shroff, 2000.
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