Creswell, John W. <br/><br/>
Qualitative inquiry & research design :  choosing among five approaches / 
John W. Creswell, Cheryl N. Poth 
 - Fourth Edition 
 - Los Angeles :  Sage Publications,  2018. 
 - xxv, 459 pages :  ilustraciones ;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781506330204 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Methodology.<br/>Research Design<br/>Qualitative research