Umar, A. (1997). Object-oriented client/server internet environments. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Umar, Amjad. Object-oriented Client/server Internet Environments. Prentice Hall, 1997.
Lua MLA (8ú heag.)Umar, Amjad. Object-oriented Client/server Internet Environments. Prentice Hall, 1997.
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