Ravitch, Sharom M. <br/><br/>
Reason and Rigor: How Conceptual Frameworks Guide Research 

 - New Delhi  Sage  2017 
 - xxiv, 234p. 
<br/><br/><label>ISBN: </label> RS 3964.80 
<br/><br/><label>Dewey Class. No.: </label>001.433 RAV