1. Bella, R. N. (2011). Religion in human evolution: From the paleolithic to the axial age. Belknap/Harvard.
2. Why religion is nothing special but is central
3. The Meaning of Belief
4. Donald, M. (2001). A mind So rare: The evolution of human consciousness. W.W. Norton.
5. Durkheim, E. (1995). The elementary forms of the religious life. Translated by Karen fields. Free Press (original work published in 1912)