Advanced communication system / 
Katiyar, Sapna 
 - New Delhi :  S.K. Kataria & Sons,  2019. 
 - 444 p.: ill.; 23 cm. 
<br/><br/>Includes appendix: objective type question, examination papers, index 
<br/><br/><label>ISBN: </label>9789380027210 
<br/><br/><label>Dewey Class. No.: </label>C 621.38 K19 2019