Wu, Bin, author
Renmin Chubanshe, 1998
Buku Teks
Wang, Ning, 1955-, author
Hebei ren min chu ban she, 1999
Buku Teks
Sun, Jin, 1953-, author
Hebei ren min chu ban she, 1999
Buku Teks
edited by Song Zhenghai
Zhejiang Jiaoyu Chubanshe, 2000
Buku Referensi
Francisco, Juan R.
University of Malaya, 1985
Buku Teks