Miller, Lynn H., author
Westview Press, 1990
Buku Teks
Miller, Lynn H., author
Westview Press, 1985
Buku Teks
Praeger Special Studies, 1883
Buku Teks
Barnet J. Richard
Simon and Schuster, 1980.
Buku Teks
D`anieri, Paul J., 1965-, author
Cengage Learning, 2017
Buku Teks