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

 - 2nd rev ed . 
 - New Delhi  New age International  2009 
 - xvi, 401p.   
<br/><br/>   
<br/><br/><label>ISBN: </label>9788122415223 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Research Methodology  Research techniques  Research methods 
<br/><br/><label>Dewey Class. No.: </label>001.8