Sterling, Thomas, author
Time-Life Books, 1975
Buku Teks
Weeks, Kent R.
William Morrow, 1997
Buku Teks
Cha, Guang Zhong, 1949-, author
Hebei Daxue Chubenshe, 2001
Buku Teks
Carlor, Manuel L
Praeger, 1974
Buku Teks
Alley, Rewi, 1897-1987, author
New World Press, 1958
Buku Teks