Levy, Roger, author
International Secretariat, Institute of Pacific Relations, 1941
Buku Teks
Frederick A. Praeger, New York: Frederick A. Praeger, 1966
Buku Teks
Dobby, E.H.G. (Ernest Henry George), 1906-1981, author
Quadrangle Books, 1961
Buku Teks
The Hongkong Daily Press, 1931
Buku Referensi
Latourette, Kenneth Scott, author
Macmillan, 1952
Buku Teks