Gravetter, Frederick J. <br/><br/>
Understanding research methods for the behavioral sciences / 
Fredrick J. Gravetter. 
 - Second edition. 
 - 564 pages ;  23 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>978-981-4352-36-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research--Behavioral sciences.