TY - BOOK AU - Perraton,Hilary AU - Creed,Charlotte,coaut ED - Foro Mundial sobre la Educación, Dakar, Senegal, 26-28 de abril de 2000 TI - Applying new technologies and cost-effective delivery systems in basic education: Thematic studies PY - 2001/// CY - Paris PB - UNESCO N1 - EFA 2000 Assessment ER -