Perraton, Hilary <br/><br/>
Applying new technologies and cost-effective delivery systems in basic education :  Thematic studies / 
Hilary Perraton; Charlotte Creed. 
 - Paris :  UNESCO,  2001 
 - 62 p. ;  il. 
 - ED.2001/WS/20 .
<br/><br/> EFA 2000 Assessment 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37.018.8: 681.3 (07) (100) =20 PER.