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Barnhill, John W. (April 2020). "Specific Phobic Disorders". Merck Manuals – Professional Version. Archived from the original on 28 April 2015. Retrieved 3 June 2021.
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Milosevic, Irena; McCabe, Randi E. (2015). Phobias: The psychology of irrational fear. Santa Barbara, California: ABC-CLIO. pp. 11–12. ISBN9781610695756. OCLC895030322..
Antony, Martin M.; McCabe, Randi E. (2005). Overcoming animal & insect phobias : how to conquer fear of dogs, snakes, rodents, bees, spiders & more. Oakland, California: New Harbinger Publications. ISBN9781608826803. OCLC785781539.