1. Boehm, C. (1999). Hierarchy in the forest: The evolution of egalitarian behavior. Cambridge: Cambridge University Press.
2. Cashdan, E. A. (1980). Egalitarianism among hunters and gatherers. American Anthropologist, 82(1), 116–120.
3. Flack, J. C., & De Waal, F. B. M. (2004). Dominance style, social power, and conflict management in macaque societies: A conceptual framework. In B. Thierry, M. Singh, & W. Kaumanns (Eds.), Macaque societies: a model for the study of social organization (pp. 157–181). Cambridge University Press.
4. Fried, M. H. (1967). The evolution of political society: An essay in political anthropology. New York: Random House.
5. Gluckman, P. D. (1965). Politics, law and ritual in tribal society. Oxford, UK: Blackwell.