PISA
2018
PISA 2015
PISA 2012
PISA 2009
PISA 2006
PISA 2003
PISA 2000
PIRLS 2016
PIRLS 2011
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PIRLS 2001
TIMSS 2019
TIMSS 2015
TIMSS 2011
TIMSS 2007
TIMSS 2003
TIMSS 1999
TALIS 2018
TALIS 2013
PIAAC