1
Published 1998
OECD Publishing

2
Published 2007
Ministry of Labor and Social Affairs, Spain

4
Published 2010
OECD Publishing

5
Published 2010
Instituto Nacional de Administración Pública

7
Published 2008
OECD Publishing

8
Published 2000
OECD Publishing

9
Published 2009
OECD Publishing

10
Published 2008
OECD Publishing

12
by Strange, Tracey
Published 2008
OECD Publishing

13
by Keeley, Brian
Published 2007
OECD Publishing

14
Published 2008
OECD Publishing

16
Published 1996
OECD Publishing

17
Published 1999
OECD Publishing

20
Published 2011
OECD Publishing