Cooper, Donald R. <br/><br/>
Business research methods. 

 - 9th ed. 
 - New Delhi :  Tata McGraw-Hill Publishing Company Limited,  2006. 
 - xxiii, 757 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical reference and index. 
<br/><br/><label>ISBN: </label>9780070620193 
<br/><br/><label>Dewey Class. No.: </label>001.42 COO