Creswell, John W. <br/><br/>
Research design :  qualitative, quantitative, and mixed methods approaches / 
John W. Creswell, J. David Creswell. 
 - 5th ed. 
 - Thousand Oaks, California :  SAGE Publications, Inc.,  2018. 
 - xxv, 275 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>9781506386768 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Methodology<br/>Social sciences--Statistical methods<br/>Research Design.
<br/><br/><label>LC Class. No.: </label>H62  / .C6963 2018