Ed Diener; Eunkook M. Suh; Richard E. Lucas; Heidi L. Smith (1999), "Subjective well-being: Three decades of progress", Psychological Bulletin, 125 (2): 276-302, doi:10.1037/0033-2909.125.2.276, Wikidata Q53983251
Philip Brickman, Dan Coates and Ronnie Janoff-Bulman. "Lottery winners and accident victims: Is happiness relative?". Journal of Personality and Social Psychology. 36 (8): 917-927. doi:10.1037/0022-3514.36.8.917. ISSN0022-3514.
Ed Diener; Eunkook M. Suh; Richard E. Lucas; Heidi L. Smith (1999), "Subjective well-being: Three decades of progress", Psychological Bulletin, 125 (2): 276-302, doi:10.1037/0033-2909.125.2.276, Wikidata Q53983251
Philip Brickman, Dan Coates and Ronnie Janoff-Bulman. "Lottery winners and accident victims: Is happiness relative?". Journal of Personality and Social Psychology. 36 (8): 917-927. doi:10.1037/0022-3514.36.8.917. ISSN0022-3514.