Rottenberg, Annette T.
Bedford Book, 1988
Buku Teks
Weinreb, Lloyd L., 1936-, author
Cambridge University Press, 2016
Buku Teks
Govier, Trudy
Wadsworth, 1985
Buku Teks
Peacocke, Christopher
clarendon Press, 2007
Buku Teks
Lee, Jung-il, author
Korea Research Information, 2010
Buku Teks