Kumar, <br/><br/>
Methods and techniques of social research 
by Kumar 
 - 9th ed. 
 - Agra:  Lakshmi Narayan Agarwal,  2012. 
 - vi,319p. 
<br/><br/><label>Subjects--Index Terms: </label>Sociology & anthropology Social research 
<br/><br/><label>Dewey Class. No.: </label>301.072