Glubb, John Bagot, author
Harper & Brothers, 1957
Buku Teks
Varwell, D. W. P.
MacDonald and Evans, 1978
Buku Teks
Bourinot, John G.
Cambridge University Press, 1909
Buku Teks
Woodroffe, John
Ganesh & Co,, 1919
Buku Teks
Moynihan, Noel, author
Roche, Basle, 1988
Buku Teks