Cooper R Donald. <br/><br/>
Business research methods / 
By Cooper R Donald. 
 - 11 ed. 
 - New Delhi :  M/s TatMcGraw Hill,  2012. 
 - 950p. ;  00 cm. 
<br/><br/><label>ISBN: </label>9781259001857 
<br/><br/><label>Dewey Class. No.: </label>658.0072  / COO