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- Kass, L. R. (2003). Beyond Therapy: Biotechnology and the Pursuit of Happiness. President's Council on Bioethics.
- Le Bon, G. (1895). Psychologie des Foules (Psychology of the Masses). Felix Alcan.
- Sapolsky, R. M. (2017). Behave: The Biology of Humans at Our Best and Worst. Penguin Press.
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