Liu, Zhangfeng
Henan da xue chu ban she, 2002
Buku Referensi
Scurfield, Elizabeth, author
Kesaint Blanc, 2011
Buku Teks
Waiyanshe (Foreign Language Teaching and Reseach Press), 2001
Buku Referensi
Yuen, Ren Chao, author
Harvard University Press, 1962
Buku Referensi
Foreign Languages Press, 1958
Buku Teks