1. Allison, S.T., and G.R. Goethals. 2011. Heroes: What they do and why we need them. New York: Oxford University Press.
2. Allison, S.T., G.R. Goethals, A.R. Marrinan, O.M. Parker, S.P. Spyrou, and M. Stein. 2019. The metamorphosis of the hero: Principles, processes, and purpose. Frontiers in Psychology 10: 606.
3. Campbell, J. 1949. The hero with a thousand faces. New York: New World Library.
4. Carlyle, T. 1841. On heroes, hero-worship and the heroic in history. London: Chapman and Hall.
5. Decter-Frain, A., R. Vanstone, and J.A. Frimer. 2017. Why and how groups create moral heroes. In Handbook of heroism and heroic leadership, ed. S.T. Allison, G.R. Goethals, and R.M. Kramer. New York: Routledge.