Urton, Gary
University for Texas , 1999
Buku Teks
Moncrieff, A.R. Hope
Gramercy Books, 1995
Buku Referensi
edited and translated by Jan and Yvonne Walls ; illustrated by Guo Huairen
Joint Pub. Co, 1984
Buku Teks SO
Rose, H.J.
Routledge, 2000
Buku Referensi
Rosenberg, Donna
NTC Publishing Group , 1994
Buku Teks