a Sharma, K.K. \a Fundamentals of Data Communication \h [Text] \c by K.K. Sharma - \a 2nd ed. - \a New Delhi: \b S.K. Kataria & Sons \c 2012 - \a 394p.: \b ill. \a Includes Index ISBN: \a 9789350141922 LC Class. No.: \a TK 5105.5 Sha / \b 506077