References for each form
For the Amazon form– Davis-Kimball, Jeannine. 2002. Warrior Women, an Archaeologist's Search for History's Hidden Heroines. New York: Warner Books.
For the Mother form– Birnbaum, Lucia C. 2001. Dark Mother, African Origins and Godmothers. Lincoln, Nebraska: Author's Choice Press.
For the Hetaira form– Just, Roger. 1989. Women in Athenian Law and Life. New York: Routledge.
For the Medium form– Kharitidi, Olga. 1995. Entering the Circle, A Russian Psychiatrist's Journey into Siberian Shamanism. Albuquerque, New Mexico: Gloria Press.
For all four forms– Hall, Nor. 1980. The Moon and the Virgin, Reflections on the Archetypal Feminine. New York: Harper & Row.
Fitzgerald, Rachel. 1999. "Relational and Functional Typologies Revisited." Journal of Psychological Type, 51, 34-39.
General References
Berry, Thomas. 1988. The Dream of the Earth. San Francisco: Sierra Club.
Douglas, Mary. 2007. Thinking in Circles: An Essay on Ring Composition. New Haven: Yale University Press.
Goodall, Jane. 1999. Reason for Hope. New York: Soko Publications.
Kohlbenschlag, Madonna. 1994. Lost in the Land of Oz, Befriending Your Inner Orphan and Heading Home. New York: Crossroads.
Ruether, Rosemary Radford. 2005. Goddesses and the Divine Feminine. Berkeley: University of California Press.