Trochim,William M.K. <br/><br/>
Research Methods. 

 - 2Nd. 
 - New Delhi.  Biztantra.  2004 
 - ix,363p. 
<br/><br/><label>ISBN: </label> RS 249.00 
<br/><br/><label>Dewey Class. No.: </label>001.42 TRO