Cooper, Donald R. <br/><br/>
Business Research Methods / 
Donald R. Cooper, Pamela S. Schindler. 
 - 9th ed. 
 - New Delhi :  McGraw-Hill,  c2006. 
 - xxiii, 757 p. :  ill. ;  24 cm. 
<br/><br/> Includes Index.<br/>Bibliography : p. [680]-708 
<br/><br/><label>ISBN: </label>0070620199 
<br/><br/><label>Dewey Class. No.: </label>658.0072 C776