J. Gelissen, W. van Oorschot, and E. Finsveen. European Societies, 14 (3):
416-440(2012)http://dx.doi.org/10.1080/14616696.2012.676660. (Eurobarometer).
L. Garcia-Faroldi. Social Indicators Research, 121 (3):
697-722(2015)First published online: June 13, 2014, http://dx.doi.org/10.1007/s11205-014-0671-1. (ISSP).
J. Hudson, N. Jo, and A. Keung. Culture and the Politics of Welfare: Exploring Societal Values and Social Choices, Palgrave Macmillan UK, London, http://dx.doi.org/10.1057/9781137457493_2. (EVS).(2015)
M. Fernández-Alonso, and A. Jaime-Castillo. International Sociology, 31 (1):
37-56(2016)First published online: November 13, 2015. http://dx.doi.org/10.1177/0268580915613192. (ISSP).
K. Dodson. Sociological Perspectives, 59 (4):
873-891(2016)First published online: October 14, 2015, http://dx.doi.org/10.1177/0731121415608508. (ISSP).