COOPER,R.donald <br/><br/>
Businss Research Methods 

 - 9th ed 
 - New Delhi  Tata mcgraw Hill Education Pv  t.Ltd,     2009 
 - xxiii,757p 
<br/><br/><label>ISBN: </label>9780070620193 
<br/><br/><label>Dewey Class. No.: </label>650.072