How to design and evaluate research in education 
Fraenkel, Jack R. 
 - Second edition. 
 -  McGraw-Hill , Inc.  1993 
 - xix , 571 pages 
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<br/><br/><label>ISBN: </label>9-71085664-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education -- Research -- Evaluation.
<br/><br/><label>Dewey Class. No.: </label>370.72 F84h 1993