Artikel Jurnal
Cunningham, George K.
Falmer Press, 2008
Buku Teks
edited by Robert F. Dernberger ... [and others]
University of Michigan, Center for Chinese Studies, 1986
Buku Teks SO
consultant, Robinetta Wheeler
Wiley Medical Publication, 1977
Buku Teks SO
Weber, Janet
Lippincott Williams & Wilkins , 2003
Buku Teks SO