1. Adorno, Theodore, et al. 1950. The authoritarian personality. New York: Harper & Brother.
2. Festinger, Leon. 1957. When Prophesy fails. Minneapolis: University of Minnesota Press.
3. Freud, Sigmund. 1913. Totem and taboo. London: Routledge and Kegan Paul.
4. ———. 1922 [1949]. Group psychology and the analysis of the ego. London: Hogarth Press.
5. ———. 1930 [1958]. Civilization and its discontents. London: Hogarth Press.