Li, Charles N., author
University California Press, 1981
Buku Teks
Ross, Claudia, author
Routledge, 2006
Buku Referensi
Yuen, Ren Chao
University of California Press, 1968
Buku Teks
Yip Po-Ching
Routledge, 1997
Buku Teks
Ross, Claudia, author
Cambridge University Press, 2005
Buku Teks