Birmingham, David
Cambridge University Press, 1993
Buku Teks
Heidhues, Mary Somers
Thames dan Hudson , 2000
Buku Teks
Jordan, R. Furneaux
Thames, [Date of publication not identified]
Buku Teks
Nussbaum, Arthur
Macmillan, 1958
Buku Teks
Younger, R. M.
Victoria Hutchinson Group 1982
Buku Teks