Cooper, Donald R. <br/><br/>
Business research methods. / 
Donald R. Cooper and Pamela S. Schindler. 
 - 11th ed. 
 - Boston :  McGraw - Hill,  2011. 
 - xxii, 761 p. :  ill. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0070532478 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business--Reseach Methodology.