Research methods in education : a practical guide 
Slavin, Robert E. 
 -  Prentice-Hall,  1984 
 - xiv, 306 p. 
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<br/><br/><label>ISBN: </label>0-13-774364-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education -- Research.
<br/><br/><label>Dewey Class. No.: </label>370.78 Slir 1984