Creswell, John W.  <br/><br/>
Research design :  qualitative, quantitative, and mixed methods approaches / 
John W. Creswell, J. David Creswell  
 - Fifth edition  
 - Los Angeles :  SAGE,   2018.  
 - xxv, 275 pages ;  26 cm.  
<br/><br/> Includes bibliographical references and index  
<br/><br/><label>ISBN: </label>9781506386706   Pbk.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Methodology <br/>Social sciences--Statistical methods 
<br/><br/><label>LC Class. No.: </label>H 62 C74 2018 CAFSD RC