Walker, James E. (1991). Raymond J. DeMallie & Elaine A. Jahner, ed. Lakota Belief and Ritual. Lincoln, NE: University of Nebraska Press. p. 69. En Questia (suscripción requerida)
mythencyclopedia.com
«Wakan Tanka». Myths Encyclopedia. Consultado el 1 de abril de 2013.
questia.com
Walker, James E. (1991). Raymond J. DeMallie & Elaine A. Jahner, ed. Lakota Belief and Ritual. Lincoln, NE: University of Nebraska Press. p. 69. En Questia (suscripción requerida)
Powers, William K. (1977). Oglala Religion. Lincoln, NE: University of Nebraska Press. p. 47. ISBN0-8032-8706-2. En Questia (suscripción requerida)
Rice, Julian (1998). Before the Great Spirit: The Many Faces of Sioux Spirituality. Albuquerque: University of New Mexico Press. p. 21. En Questia (suscripción requerida)