Fundamentals of data communications and networks. 
Shajay, sharma 
 - India,  S.K Kataria & sons.  2010. 
 - 398p. 
<br/><br/><label>ISBN: </label>978-93-5014-010-9 
<br/><br/><label>Subjects--Topical Terms: </label>--School of Engineering and Technology
<br/><br/><label>LC Class. No.: </label>TK 5105   / .S43 2010