Artikel Jurnal
Zhongguo Guoji Guangfan Chubanshe, 2000
Buku Referensi
Guo, wu yuan fa zhan yan jiu zhong xin
China Intercontinental Press, 2010
Buku Teks
Lane, Marc J.
John Wiley & Sons, 1982
Buku Teks
Fey, Marc E.
College-Hill Publication, 1986
Buku Teks