Chevallier, Andrew, author
DK Publishing, 1996
Buku Teks
Kenny, Anthony, author
Blackwell Publishing, 2007
Buku Teks
Gebhard, Jerry G., author
Cambridge University Press, 1999
Buku Teks
Jain, Sima, author
Springer Science , 2012
eBooks
Wei, Liming, author
China Intercontinental Press, 2010
Buku Teks