- Veenhoven, R.
- Findings on Happiness and Family of Origin (Earlier Family for Adults, Current for Young).
- World Database of Happiness, Collection of Correlational Findings, Finding report F1, Erasmus University Rotterdam, The Netherlands, Printout 2009, http://worlddatabaseofhappiness.eur.nl.
Eligible for inclusion in findings archive
- No, no new data on present happiness.