Hooper-Greenhill, Eilean, author
Routledge, 1996
Buku Teks
Li, Xianyao, author
Cambridge University Press, 2011
Buku Teks
Li, Xian Yao, author
China Intercontinental Press, 2010
Buku Teks
Rosenblatt, Arthur, author
John Wiley & Sons, 2001
Buku Teks
Hudson, Kenneth, author
MacMilan Press, 1980
Buku Referensi