- Diener, E.; Biswas-Diener, R.
- Well-Being Interventions to Improve Societies
- Sachs, J., Layard, R. and Helliwell, (Eds): Global Happiness Policy Report, 2019, Global Happiness Council
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no new data on present happiness.