Bernard, H. Russell <br/><br/>
Social research methods  qualitative and quantitative approaches 

 - 2nd ed 
 - Saga Publications, New Dehli  2013 
 - xxxiii,789 
<br/><br/><label>ISBN: </label>978-1-429-7854-5 
<br/><br/><label>Dewey Class. No.: </label>307.2 Ber