Sim cards value added technologies/ 
edited by S. Swarn; G. S. Rao. 
 - Delhi :  Ajanta Books International.,  2006. 
 - 123 P.;  25 cm. 
<br/><br/><label>ISBN: </label> Rs.400.00 
<br/><br/><label>Dewey Class. No.: </label>000