Creswell, John W., <br/><br/>
Research design :  qualitative, quantitative and mixed methods approaches 

 -  2018 
 - 275 páginas :  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Generalidades
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>300.72  / C88