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^Rothenberg, Molly Anne; Foster, Dennis A. (2003). Perversion and the Social Relation: sic IV, p. 140, 156. Duke University Press, ISBN0822384728.
^Penney, James (2012). The World of Perversion: Psychoanalysis and the Impossible Absolute of Desire, p. 48. SUNY Press, 2012. ISBN0791481670.
^Butler, Eliza Marian (1949). Ritual Magic, p. 102. Penn State Press. ISBN0271044888.
^Mathews, Chris (2009). Modern Satanism: Anatomy of a Radical Subculture, p. 15. Greenwood Publishing Group ISBN031336639X.