Galeotti, Mark
St. Martins Press, 1997
Buku Teks
Daniels, Robert V
Westview Press, 1988
Buku Teks
Foreign Language Press, 1957
Buku Teks
Lewin, Moshe
University of California Press , 1991
Buku Teks
Kennan, George F., 1904-
An Atlantic Monthly Press Book, 1961
Buku Teks