Fraenkel, Jack R. <br/><br/>
How to design and evaluate research in education / 
Jack R. Fraenkel, Norman E. Wallen and Helen H. Hyun. 
 - 8th ed. 
 - New York:  McGraw Hill,  2013. 
 - xxviii, 642p.  ill. 
<br/><br/>Includes index. 
<br/><br/>
<br/><br/><label>ISBN: </label>9789814581042 
<br/><br/><label>Dewey Class. No.: </label>370.72  / F799 2013 c.1