Brown, J. The Sacred Pipe: Black Elk's Account of the Seven Rites of the Oglala Sioux. Norman, OK: University of Oklahoma Press, 2012.
Cambpell, J., et al. The Hero's Journey. New York: New World Library, 2003.
Stampoulos, L. The Redemption of Black Elk: An Ancient Path to Inner Strength. British Columbia, Canada: CBC Publications, 2010, retrieved from googlebooks.com