Kothari, C . R <br/><br/>
Research methodology / 
C. R. Kothari 
 - 4th ed. 
 - New Delhi :  New Age International,  2019 
 - xxi, 458p. 
<br/><br/><label>ISBN: </label>9789386649225 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>300.723KOT-R D1939