Mangal, S K  Shubhra Mangal <br/><br/>
Research Methodology in Behavioural Sciences / 
S K Mangal & Shubhra Mangal 
 - New Delhi  PHI Learning Pvt Ltd  2013 
 - 752 
<br/><br/><label>ISBN: </label>9788120348080 
<br/><br/><label>Dewey Class. No.: </label>001.42  / MAN