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

 - 3rd ed. 
 - N.Delhi  Sage Publications  2009 
 - xxix, 260 p. 
<br/><br/><label>ISBN: </label>9788132107484 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Methodology.<br/>Social sciences--Statistical methods.
<br/><br/><label>Dewey Class. No.: </label>303  / CRE