TRIPATHI, P. C. <br/><br/>
A TEXTBOOK OF RESEARCH METHODOLOGY : IN SOCIAL SCIENCE 

 - NEW DELHI  SULTAN CHAND & SONS  2007 
 - B.P. 
 -  - .
<br/><br/><label>ISBN: </label>8180545555 
<br/><br/><label>Dewey Class. No.: </label>330.072