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

 - 2nd rev ed 
 - New Age International Ltd Publ., New Delhi  2004 
 - xvi, 401 
<br/><br/><label>ISBN: </label>81-224-1522-9 
<br/><br/><label>Dewey Class. No.: </label>307.2 Kot