Forer, B.R. (1949). "The fallacy of personal validation: A classroom demonstration of gullibility". Journal of Abnormal and Social Psychology. American Psychological Association. 44 (1): 118–123. doi:10.1037/h0059240.
Claridge, G; Clark, K.; Powney, E.; Hassan, E. (2008). "Schizotypy and the Barnum effect". Personality and Individual Differences. 44 (2): 436–444. doi:10.1016/j.paid.2007.09.006.
Dickson, D.H.; Kelly, I.W. (1985). "The 'Barnum Effect' in Personality Assessment: A Review of the Literature". Psychological Reports. Missoula. 57 (1): 367–382. doi:10.2466/pr0.1985.57.2.367. ISSN0033-2941. OCLC1318827.
MacDonald, D.J.; Standing, L.G. (2002). "Does self-serving bias cancel the Barnum effect?". Social behavior and personality. 30 (6): 625–630. doi:10.2224/sbp.2002.30.6.625.
hexinduction.com
Nolan, Stuart. "The Forer Scam". TEDxSalford. คลังข้อมูลเก่าเก็บจากแหล่งเดิมเมื่อ 2015-02-19. สืบค้นเมื่อ 25 March 2013.
Dickson, D.H.; Kelly, I.W. (1985). "The 'Barnum Effect' in Personality Assessment: A Review of the Literature". Psychological Reports. Missoula. 57 (1): 367–382. doi:10.2466/pr0.1985.57.2.367. ISSN0033-2941. OCLC1318827.
