Goodman, Allan E
Westview Press, 1993
Buku Teks
edited by Meredith Woo-Cumings and Michael Loriaux
Westview Press, 1993
Buku Teks
edited by John Baylis and N.J. Rengger
Clarendon Press , 1992
Buku Teks
Gerald Segal
Simon and Schuster, 1996
Buku Referensi
edited by Arthur S. Banks, Alan J. Day, Thomas C. Muller
CSA Publications, 1997
Buku Referensi