Kothari, C. R. <br/><br/>
Research Methodology :  Methods And Techniques 
/ by C. R. Kothari & Gaurav Garg 
 - 4th ed. 
 - New delhi  New Age International Ltd.Publisher  2019 
 - xxi,458p. 
<br/><br/><label>ISBN: </label>9789386649225 
<br/><br/><label>Dewey Class. No.: </label>300.72  / KOT/R