↑Andrei A. Znamenski. The Beauty of the Primitive: Shamanism and Western Imagination. Oxford University Press, 2007. 138. lpp. ISBN9780198038498.
↑Christopher Partridge. «Ch. 3: Cleansing the Doors of Perception: The Contemporary Sacralization of Psychedelics». Reenchantment of West. Alternative Spiritualities, Sacralization, Popular Culture, and Occulture 2. Continuum, 2006. 113. lpp. ISBN9780567552716.