1
Published 2007
OECD Publishing

2
Published 2001
OECD Publishing

3
Published 2009
OECD Publishing

4
Published 2002
OECD Publishing

5
Published 2009
Ministry of Education, Science and Technology, Korea

6
Published 2005
OECD Publishing

7
Published 2005
OECD Publishing

8
Published 2006
OECD Publishing

9
Published 2010
OECD Publishing

10
Published 2010
OECD Publishing

11
Published 2006
OECD Publishing

12
Published 2005
Fundacion E

13
Published 1998
OECD Publishing

14
Published 2002
OECD Publishing

15
Published 2008
OECD Publishing

16
Published 2000
OECD Publishing

17
Published 2010
OECD Publishing

18
Published 2010
Universidad Catolica Cardenal Raul Silva Henriquez

19
Published 2015
OECD Publishing

20
Published 1998
OECD Publishing