By Kothari, C. R. <br/><br/>
Research methodology: methods and techniques 

 - 4th 
 - New Delhi  New Age International Publishers  2019 
 - xxi, 458p. 
<br/><br/><label>ISBN: </label>9789386649225 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research methodology: methods and techniques<br/>Research methodology: methods and techniques
<br/><br/><label>Dewey Class. No.: </label>1.42  / KOT