Huxley, Thomas Henry: Christianity and Agnosticism: A Controversy. Teoksessa Collected Essays vol 5. Science and Christian Tradition, s. 237–239. London: Macmillan, 1889. Teoksen verkkoversio. (englanniksi)
Barnes, Michael H.: In the Presence of Mystery. An Introduction to the Story of Human Religiousness, s. 3–. New London: Twenty-Third Publications, 2003. ISBN 978-1-58595-259-5Google Books. (englanniksi)
Oppy, Graham: Arguing about Gods, s. 15–. Cambridge: Cambridge University Press, 2006. Virhe: Virheellinen ISBN-tunnisteGoogle Books. (englanniksi)
britannica.com
Flew, Antony: AgnosticismEncyclopædia Britannica. Viimeksi päivitetty 9.8.2023. Viitattu 18.8.2023. (englanniksi)
”Agnosticism is of the essence of science, whether ancient or modern. It simply means that a man shall not say he knows or believes that which he has no scientific grounds for professing to know or believe. Consequently, agnosticism puts aside not only the greater part of popular theology, but also the greater part of anti-theology. On the whole, the ’bosh’ of heterodoxy is more offensive to me than that of orthodoxy, because heterodoxy professes to be guided by reason and science, and orthodoxy does not.” Huxley, Thomas: Agnosticism: A SymposiumThe Agnostic Annual. 1884. Viitattu 22.8.2023. (englanniksi)
evl.fi
julkaisut.evl.fi
Salomäki, Hanna ym.: Uskonto arjessa ja juhlassa. Suomen evankelis-luterilainen kirkko vuosina 2016–2019, s. 69, 74. Helsinki: Kirkon tutkimuskeskus, 2020. ISBN 978-951-693-403-0Teoksen verkkoversio (PDF).
homestead.com
ajburger.homestead.com
Clifford, William Kingdon: The Ethics of Beliefajburger.homestead.com. 1877. Viitattu 7.10.2009. (englanniksi)
inters.org
Mura, Gaspare: AgnosticismInterdisciplinary Encyclopedia of Religion and Science. 2005. Viitattu 14.8.2023. (englanniksi)
learnreligions.com
Cline, Austin: What is AgnosticismLearn Religions. Viitattu 18.6.2012. (englanniksi)
Draper, Paul: Atheism and AgnosticismThe Stanford Encyclopedia of Philosophy. Fall 2017 edition. Viitattu 18.8.2023. (englanniksi)
”Sometimes a person who is really an atheist may describe herself, even passionately, as an agnostic because of unreasonable generalised philosophical scepticism which would preclude us from saying that we know anything whatever except perhaps the truths of mathematics and formal logic.” Smart, J. J. C.: Atheism and AgnosticismThe Stanford Encyclopedia of Philosophy. 2004–2011. Viitattu 19.1.2017. (englanniksi)
Hartikainen, Erkki: Ateismin määritelmä. Vapaa ajattelija, 2003, nro 4/2003. Artikkelin verkkoversio. Viitattu 14.8.2023.
virginia.edu
xtf.lib.virginia.edu
Nielsen, Kai: Agnosticism. Teoksessa Wiener, Philip P. (päätoim.): Dictionary of the History of Ideas. Studies of Selected Pivotal Ideas. New York: Charles Scribner’s Sons, 1968. Teoksen verkkoversio (viitattu 14.8.2023). (englanniksi)