Author
Organisation for Economic Co-operation and Development
18
Organisation for Economic Co-operation and Development. Department of Economics and Statistics
3
Centre for Educational Research and Innovation
2
Belfali, Yuri,
1
Clio Infra (Project),
1
International Energy Agency
1
International Monetary Fund
1
Organisation for Economic Co-operation and Development,
1
Programme for International Student Assessment
1
Schleicher, Andreas,
1
Ting, Michael
1
UNESCO Institute for Statistics
1
UNESCO/OECD World Education Indicators Programme
1
Unander, Fridtjof
1
Zanden, J. L. van,
1