1. Allen, D. S. (2000). The World of Prometheus: The Politics of Punishing in Democratic Athens. Chichester: Princeton University Press.
2. Almond, G. A. (1960). Introduction: a functional approach to comparative politics. In Gabriel A. Almond and James S. Coleman (eds), The Politics of Developing Areas (pp. 3-64). New Jersey: Princeton University Press.
3. Anderson, B. (2006). Imagined Communities: Reflections on the origin and Spread on Nationalism. London-New York: Verso.
4. Baumeister, R. F., DeWall, C. N., Ciarocco N. J., Twenge, J. M. (2005). Social exclusion impairs self-regulation. Journal of Personality and Social Psychology, 88(4), 589-604.
5. Baumeister, R. F., Leary, M. R. (1995). The need to belong: desire for interpersonal attachments as a fundamental human motivation. Psychological Bulletin, 117(3), 497-529.