Hosking, Geoffrey A.
Penguin Book, 2001
Buku Teks
Arkell, A.J.
University of London Press, 1961
Buku Teks
Hitti, Philip Khuri, 1886-1978
MacMillan, 1974
Buku Teks SO
Easton, Stewart C.
Holt, Rinehart and Winston, 1955
Buku Teks
Clapham, John, Sir
The Cambridge University Press, 1949
Buku Teks