Rees, Leslie, 1905-2000
Angus and Roberson, 1973
Buku Teks
Nicoll, Allardyce
George G. Harrap, 1949
Buku Teks
Gibb, Hamilton A.R., Sir
Oxford University Press, 1949
Buku Teks
Spuler, Bertold
E.J. Brill, 1960
Buku Teks
Easton, Stewart C.
Praeger, 1964
Buku Teks