Fraenkel,Jack R. <br/><br/>
How to design and evaluate research in education 

 - 2 ed 
 - United State of America  Mcgraw-hill ING  1993 
 - 571 p. 
<br/><br/><label>ISBN: </label>9780070217713 
<br/><br/><label>Dewey Class. No.: </label>370.7