Elgood, Cyril, 1892-, author
Cambridge University Press, 1951
Buku Teks
Hosking, Geoffrey A., author
Penguin Book, 2001
Buku Teks
Wilson, Arnold T., author
George Allen and Unwin, 1959
Buku Teks
Easton, Stewart C., author
Holt, Rinehart and Winston, 1955
Buku Teks
Ghirshman, R.
Penguin Books, 1954
Buku Teks