BSNL Junior Telecom Officer 
BSNL Junior Telecom Officer 
 -  "iv, 96p., 24 cm., pbk." 
 - India  Ramesh Publishing House  2017 
<br/><br/><label>ISBN: </label>9789350128398 
<br/><br/><label>Dewey Class. No.: </label>153.94 GUP   / 22.153.94 GUP