Kothari, C R <br/><br/>
Research Methodology :  Methods and Techniques / 
C R Kothari 
 - 2nd Ed. 
 - New Delhi:  Wishwa Prakashan,  2000. 
 - 468p 
<br/><br/><label>ISBN: </label>8173280363 
<br/><br/><label>Dewey Class. No.: </label>300.723  / KOT/R