Shelly, G. B. (2003). Business data communications: Introductory concepts and techniques (3rd ed.). Thomson Asia.
Dyfyniad Arddull ChicagoShelly, Gary B. Business Data Communications: Introductory Concepts and Techniques. 3rd ed. Singapore: Thomson Asia, 2003.
Dyfyniad MLAShelly, Gary B. Business Data Communications: Introductory Concepts and Techniques. 3rd ed. Thomson Asia, 2003.
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