Scheerens Jaap <br/><br/>
Foundations of educational effectiveness. 

 - Oxford  Elsevier Science        1997 
 - viii,347p  cm. 
<br/><br/><label>Standard No.: </label>33647 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>T, N7