Zarrinkub, A.H.; Keddie, N.R (1991). "Fidāʾiyyān-i Islām". Encyclopaedia of Islam (به انگلیسی). Vol. ۲ (۲ ed.). LEIDEN: E.J. BRILL. p. ۸۸۲–۸۸۳. Retrieved 2012-10-03.:"a small politico-religious terrorist group based in Tehrān which during its twelve years of activity (1943-55) became notorious for its responsibility for numerous political murders"
KAZEMI, FARHAD (1999). "FEDĀʾĪĀN-E ESLĀM". Encyclopædia Iranica (به انگلیسی). Vol. 9. New York: Bibliotheca Persica Press. p. 470-474. Archived from the original on 2012-10-03. Retrieved 2012-10-03.:"edāʾīān’s importance in Persian politics was due to several related factors. First, they were exceptionally successful as a terrorist organization"
http://web.mit.edu/taalebi/www/soscof/oilNationalization/ciaQuo/kazemzadehReview.html All evidence, including the CIA's secret history, shows that Ayatollah Kashani and Fadaian Islam (the first violent Islamic fundamentalist organization in Iran, many of whose leaders rose to power in the Islamic Republic after 1979), along with monarchist military officers, were mobilized by the CIA and MI6 in the August 1953 coup against Mossadegh[...]The "terrorist group" that Kermit Roosevelt and Donald Wilber mobilized was the "Fadaian Islam."
«روزنامه جام جم». تهران. ۲۷ دی ۱۳۹۴. بایگانیشده از اصلی در ۱۹ ژوئن ۲۰۱۶. دریافتشده در ۳۰ خرداد ۱۳۹۵.
KAZEMI, FARHAD (1999). "FEDĀʾĪĀN-E ESLĀM". Encyclopædia Iranica (به انگلیسی). Vol. 9. New York: Bibliotheca Persica Press. p. 470-474. Archived from the original on 2012-10-03. Retrieved 2012-10-03.:"edāʾīān’s importance in Persian politics was due to several related factors. First, they were exceptionally successful as a terrorist organization"
Hosseini, H. (1990), From Buchanan to Khomeini. American Journal of Economics and Sociology, 49: 167–184. doi: 10.1111/j.1536-7150.1990.tb02270.x http://onlinelibrary.wiley.com/doi/10.1111/j.1536-7150.1990.tb02270.x/abstract the polico-religious activist Ayatollah Kashani during the Mossadegh era and
the terrorist Navab-Safavi (a young clergyman) in the late 1940s and early 1950s that
paved the way for Ayatollah Khomeini.
