- Wheeler, J.A.; Gorey, K.M.; Greenblatt, B.
- The beneficial Effects of Volunteering for older Volunteers and the People they serve: a Meta-analysis.
- International Journal of Aging and Human Development, 1998, Vol. 47, 69 - 79
- 0091 4150
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.