Clyde, Paul H. (Paul Hibbert), author
Prentice-Hall, 1953
Buku Teks
Walker, Allan S., author
Australian War Memorial, 1956
Buku Teks
Latourette, Kenneth Scott, author
Macmillan, 1957
Buku Teks
Christopher, James W., author
E.J. Brill, 1928
Buku Teks
Lower, Arthur R.M., author
The Haddon Craftsmen, 1941
Buku Teks