Coates, John 1
Westview Press, 1992
Buku Teks
Coates, John
Cambridge Cambridge University Press 1996,
Buku Teks
Matthews, John.
Thames and Hudson, 1981
Buku Teks
Cady, John F., author
Cornell University Press, 1958
Buku Teks
Glubb, John Bagot, author
Harper & Brothers, 1957
Buku Teks