1. Charles Darwin , 1872. The expression of the emotions in man and animals. John Murray , London . Charles Darwin, 1872. The expression of the emotions in man and animals. John Murray, London.
2. Magda B. Arnold , 1960. Emotion and personality . Columbia University Press , New York . Magda B. Arnold, 1960. Emotion and personality. Columbia University Press, New York.
3. Richard S. Lazarus , 1966. Psychological stress and the coping process . McGraw-Hill , New York . Richard S. Lazarus, 1966. Psychological stress and the coping process. McGraw-Hill, New York.
4. Richard S. Lazarus , 1991. Emotion and adaptation . Oxford University Press , New York . Richard S. Lazarus, 1991. Emotion and adaptation. Oxford University Press, New York.
5. Klaus R. Scherer , 1984. On the nature and function of emotions: A component process approach . In: K. R. Scherer & P . Ekman (Eds.), Approaches to emotion, Hillsdale, NJ : Erlbaum , 293--317. Klaus R. Scherer, 1984. On the nature and function of emotions: A component process approach. In: K. R. Scherer & P. Ekman (Eds.), Approaches to emotion, Hillsdale, NJ: Erlbaum, 293--317.