Gerald Segal
Simon and Schuster, 1996
Buku Referensi
edited by Meredith Woo-Cumings and Michael Loriaux
Westview Press, 1993
Buku Teks
Art, Robert J
Pearson, 2017
Buku Teks
edited by Arthur S. Banks, Alan J. Day, Thomas C. Muller
CSA Publications, 1997
Buku Referensi
Calvocoressi, Peter
Longman, 1992
Buku Teks