Santosh Gupta <br/><br/>
Research methodolgy and statistical techniques 
by Santosh Gupta 
 - New Delhi  Deep & Deep pub.  2007 
 - 510p. 
<br/><br/><label>ISBN: </label>8171005012 
<br/><br/><label>Dewey Class. No.: </label>001.422 GUP/RES