Kothari, C.R <br/><br/>
Rsearch Methodology:  Methods and Techniques / 
by C.R. Kothari  
 - New Delhi:   New Age International,   2009 
 - p.401 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Research Methodolgy
<br/><br/><label>Dewey Class. No.: </label>001.42  / KOT-R