- Veenhoven, R.
- Findings of Happiness and Aggression.
- World Database of Happiness, Collection of Correlational Findings, Finding report A5, Erasmus University Rotterdam, The Netherlands, Printout 2009 http://worlddatabaseofhappiness.eur.nl.
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no new data on present happiness.