Creswell, John W <br/><br/>
Research Design: Qualitative, Quantitative and Mixed Methods Approaches /  
by John W. Creswell  
 - 3rd Ed. 
 - New Delhi:   SAGE Publications Inc.,   2011 
 - p.260 
<br/><br/><label>ISBN: </label>9788107484 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Methodology <br/> Research Design <br/> Social Science Research Methodology
<br/><br/><label>Dewey Class. No.: </label>001.42  / CRE-R.3