AT The Clarendon Press, 1964
Buku Teks
Hines, Thomas S.
University of California Press, 1994
Buku Teks
Nelson, James G.
Twayne, 1966
Buku Teks
Sansom, Katharine, 1883-
The Diplomatic Press , 1972
Buku Teks
Maurois, A. (Andre)
E.P. Dutton & co., Inc., 1959
Buku Referensi