Gupta; R. <br/><br/>
Esic  Ldc, Steno Pariksha 

 -  Ramesh Publishing House  2011 
 - V. Pg. 
<br/><br/><label>ISBN: </label>978-81-7812-742-2 
<br/><br/><label>Dewey Class. No.: </label>001.368 G93E