Trochim, William <br/><br/>
Research Methods 

 - 2nd ed. 
 - Delhi  Cengage Learning  2016 
 - 422 p. 
<br/><br/><label>ISBN: </label>9788131530856 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>001.42TRO-R