edited by Jonathan M. Harris and Neva R. Goodwin
Edward Elgar , 2003
Buku Teks
Pacelle, Richard L., Jr.
Westview Press, 1991
Buku Teks
Horowitz, Donald L.
The Brookings Institution, 1977
Buku Teks
Valerie Freeman, Rebecca Freeman
Chandos Publishing, 2017
Buku Teks
Farley, John E.
Prentice-Hall, 1987
Buku Teks