1. http://www.powersource.com/gallery/objects/default.html
2 "The Medicine Wheel" by: Don Warne http://www.youtube.com/watch?v=fIGrFHy463g
3. Luis S.,Kemnitzer. "Structure, Content, and Cultural Meaning of "Yuwipi": A Modern Lakota Healing Ritual." American Ethnologist, Vol. #, No. 2 (May, 1976) pp. 261-280. Published by Blackwell Publishing.
4. Lincoln, Bruce. "A Lakota Sundance and the Problematics of Sociocosmic Reunion". History of Religions, Vol. 34, No. 1 (Aug.,1994), pp.1-14. Published by: The University of Chicago Press
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