Krishnakumar, R <br/><br/>
Mobile VAS/ 
R. Krishnakumar 
 - New Delhi:  Tata McGraw-Hill Education,  c2010 
 - xxi, 150p.:  ill;  24cm 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>9780070148840(pbk)  Rs.495.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication and technology<br/>Digital communication<br/>Telecommunication<br/>Cellular telephone systems<br/>Mobile communication system
<br/><br/><label>Dewey Class. No.: </label>621.382