Wood, Charles T.
Universe Books, 1970
Buku Teks
Metford, J.C.J., author
Thames and Hudson, 1983
Buku Referensi
Yalouris, Nikolas
England : Westerham Press, 1975
Buku Teks
Gemmell, David
Legend, 1987
Buku Teks
Hillenbrand, Laura, author
Ballantine Books, 2001
Buku Teks