Kumar, Ranjit <br/><br/>
Research methodology: a step-by-step guide for beginners 

 - 4th ed. 
 - Los Angeles  Sage  2014 
 - xxvii, 399 p. 
<br/><br/><label>ISBN: </label>9781446269978 
<br/><br/><label>Dewey Class. No.: </label>1.42  / KUM