2
Published 2001
OECD Publishing

3
Published 2014
Corporación de Investigación, Estudio y Desarrollo de la Seguridad Social 

5
Published 2013
OECD Publishing

6
Published 2012
OECD Publishing

7
Published 2017
OECD Publishing

8
Published 2012
OECD Publishing

10
Published 2019
OECD Publishing

11
by Stabile, Carol A.
Published 2020
Goldsmiths Press

13
OECD Publishing

14
by Vulto, Arnold G.
Published 2023
MDPI - Multidisciplinary Digital Publishing Institute

15
Published 2022
OECD Publishing

16
by Shen, Liyin
Published 2023
MDPI - Multidisciplinary Digital Publishing Institute

17
by Shen, Liyin
Published 2023
MDPI - Multidisciplinary Digital Publishing Institute

18
by Bratt, Duane
Published 2023
University of Calgary Press

19
by McCarroll, Pamela R.
Published 2023
MDPI - Multidisciplinary Digital Publishing Institute