Sayre-McCord, Geoff. (2014). Zalta, Edward N. ed. «Metaethics»The Stanford Encyclopedia of Philosophy (Metaphysics Research Lab, Stanford University) (Noiz kontsultatua: 2020-04-08).
Sinnott-Armstrong, Walter. (2019). Zalta, Edward N. ed. «Consequentialism»The Stanford Encyclopedia of Philosophy (Metaphysics Research Lab, Stanford University) (Noiz kontsultatua: 2020-04-27).
Alexander, Larry; Moore, Michael. (2016). Zalta, Edward N. ed. «Deontological Ethics»The Stanford Encyclopedia of Philosophy (Metaphysics Research Lab, Stanford University) (Noiz kontsultatua: 2020-04-27).
Hursthouse, Rosalind; Pettigrove, Glen. (2018). Zalta, Edward N. ed. «Virtue Ethics»The Stanford Encyclopedia of Philosophy (Metaphysics Research Lab, Stanford University) (Noiz kontsultatua: 2020-04-27).
Moriarty, Jeffrey. (2017). Zalta, Edward N. ed. «Business Ethics»The Stanford Encyclopedia of Philosophy (Metaphysics Research Lab, Stanford University) (Noiz kontsultatua: 2020-04-27).
(Ingelesez)Nelkin, Dana K.. «Moral Luck»plato.stanford.edu(Noiz kontsultatua: 2020-04-09).