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

 - 2nd edition 2004 /  
 - New Delhi :  New Age International,  2021 
 - 350 pages.  
<br/><br/><label>ISBN: </label>81-224-1522-9 
<br/><br/><label>Subjects--Topical Terms: </label> Biotechnology 
<br/><br/><label>Dewey Class. No.: </label>1.42  / KOT