Tareq Y. Ismail
Syracuses University Press, 1974
Buku Teks
Halliday, Fred, author
Cambridge University Press, 2005
Buku Teks
Kedourie, Elie, author
Westview Press, 1987
Buku Teks
Harari, Maurice, author
Prentice-Hall, 1962
Buku Teks
Abboushi, W.F., 1931-, author
Dodd, Mead, 1971
Buku Teks