1. Andrews, F. M., & Withey, S. B. (1976). Social indicators of well-being. New York: Plenum Press.
2. Antonucci, T. C., & Akiyama, H. (1991). Social relationships and aging well. Generations, 15, 39–44.
3. Argyle, M. (1996). The social psychology of leisure. New York: Penguin Books.
4. Aristotle. (1980). Nichomachean ethics. (W. D. Ross, Trans.). Oxford: Oxford University Press.
5. Aristotle. (1998). Politics. (C. D. C. Reeve, Trans.). Indianapolis: Hackett.