- King, J.E.; Landau, V.
- Can Chimpanzee (Pan troglodytes) Happiness be Estimated by Human Raters?
- Journal of Research in Personality, 2003, Vol. 37, 1 - 15
- 0092 6566
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.