Research methods in social science 
B S Yadav; Mohit Jain 
 - 	New Delhi :   Shree Publishers & Distributors,   2007. 
 - 	vi, 272 pages ;   23 cm 
<br/><br/><label>ISBN: </label>8183291635 
<br/><br/><label>Dewey Class. No.: </label>300.72