Singh, Yogesh Kumar. <br/><br/>
Research methodology / 
Yogesh Kumar Singh. 
 - [S.l.] :  APH Publishing Corporation,  2005. 
 - 266p 
<br/><br/> Hardcover. 
<br/><br/><label>ISBN: </label>817648962X 9788176489621 
<br/><br/><label>Dewey Class. No.: </label>370.72