Westview Press, 1991
Buku Teks
Nicoll, Allardyce, author
George G. Harrap, 1949
Buku Teks
Gibb, Hamilton A.R., Sir, author
Oxford University Press, 1949
Buku Teks
Spuler, Bertold, author
E.J. Brill, 1960
Buku Teks
Lichtheim, George
Routledge & Kegan Paul, 1964
Buku Teks