Chazan, Pauline, 1948-
The moral self
Routledge, 1998
 Buku Teks
Goldman, Alan H.
Moral knowledge
Routledge, 1990
 Buku Teks
Pendidikan moral
[publisher not identified], [date of publication not identified]
 Buku Teks
Kurtines, William M.
Moralitas, perilaku moral dan perkembangan moral
UI-Press, 1992
 Buku Teks
Vlastos, Gregory
Socrates : ironist and moral philosopher
Cambridge University Press , 1991
 Buku Teks