Gupta, P. C. (1996). Data communications. Prentice-Hall of India.
Tohutoru Kātū Chicago (17th ed.)Gupta, Prakash C. Data Communications. New Delhi: Prentice-Hall of India, 1996.
Tohutoro MLA (9th ed.)Gupta, Prakash C. Data Communications. Prentice-Hall of India, 1996.
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