Clyde, Paul Hibbert
Prentice-Hall, 1953
Buku Teks
Walker, Allan S.
Australian War Memorial, 1956
Buku Teks
Latourette, Kenneth Scott
Macmillan, 1957
Buku Teks
Christopher, James W.
E.J. Brill, 1928
Buku Teks
Latourette, Kenneth Scott
Macmillan, 1951
Buku Teks