Slavin,Robert E. <br/><br/>
Co-oprative Learning:Theory,Research and Practice  

 - 2nd Ed.   
 - Boston   Allyn and Becon Inc.  1998 
<br/><br/><label>ISBN: </label>205156304 
<br/><br/><label>Dewey Class. No.: </label>3371.148  / SLA/COO