Cartledge, Gwendolyn, author
Allyn and Bacon, 1995
Buku Teks
Barnes, Donald L., author
Burgess, 1969
Buku Teks
Richards, Jack C., author
Cambridge University Press, 2015
Buku Teks
Richards, Jack C., author
Cambridge University Press, 2006
Buku Teks
Richards, Jack C., author
Cambridge University Press, 1994
Buku Teks