1. The psychology of happiness;Argyle,1987
2. Depression;Beck,1967
3. The structure of psychological well-being;Bradburn,1969
4. On the induction of depressed mood in the laboratory: Evaluation and comparison of the Velten and musical procedures;Clark;Advances in Behaviour Research and Therapy,1983
5. Influence of Extraversion and Neuroticism on subjective well-being: Happy and unhappy people;Costa;Journal of Personality and Social Psychology,1980