Pummer, Theron; MacAskill, William: "Effective altruism", s. pp. 1–9. In LaFollette, Hugh (ed.). International Encyclopedia of Ethics. Hoboken, NJ: John Wiley & Sons. OCLC 829259960 S2CID 241220220, June 2020. doi:10.1002/9781444367072.wbiee883ISBN 9781444367072Effective altruism.
MacAskill, William: "The definition of effective altruism", s. pp.10-28. (In Greaves, Hilary; Pummer, Theron (eds.). Effective Altruism: Philosophical Issues. Engaging philosophy.) Oxford; New York: Oxford University Press., 2019. OCLC 1101772304 doi:10.1093/oso/9780198841364.003.0001ISBN 9780198841364
Crouch, Will: What is Effective Altruism? May 30, 2013. Practical Ethics Blog. University of Oxford. Archived from the original on October 3, 2015.. Viitattu February 4, 2020.
Pummer, Theron; MacAskill, William: "Effective altruism", s. pp. 1–9. In LaFollette, Hugh (ed.). International Encyclopedia of Ethics. Hoboken, NJ: John Wiley & Sons. OCLC 829259960 S2CID 241220220, June 2020. doi:10.1002/9781444367072.wbiee883ISBN 9781444367072Effective altruism.