Middletown : Wesleyan University Press
Majalah, Jurnal, Buletin
Jenkins, Keith, author
Routledge, 1996
Buku Teks
Ekelund, Robert B., Jr.
New York McGraw Hill 1997,
Buku Teks
Ho Kan-Chih
Peking: Foreign Language Press, 1959
Buku Teks
Cumings, Bruce, author
W.W. Norton, 1997
Buku Teks