TY  - BOOK
ED  - Programme for International Student Assessment
TI  - PISA 2009 results: learning trends (volume V): changes in student performance since 2000
SN  - 9789264091498
U1  - 370.7 
PY  - 2010///
CY  - [s.l.]
PB  - OECD
KW  - APRENDIZAJE
KW  - INFORMES
KW  - MEDICIONES Y PRUEBAS EDUCATIVAS
N1  - Incluye referencias
ER  -