Fundamentals of data communications & networks 
Sharma Sanjay 
 - New Delhi  S.K Kataria & sons  2010 
 - 398p. 
<br/><br/><label>ISBN: </label>978-93-5014-010-9 
<br/><br/><label>Subjects--Topical Terms: </label>--Computer Science
<br/><br/><label>LC Class. No.: </label>TK 5105  / .S43 2010