Morgenthau, Hans J.
The University of Chicago Press, 1962
Buku Teks
Whittaker, J. Richard
Dickenson, 1968
Buku Teks
Bolton, William, 1933-
Longman Sciantific & Technical, 1995
Buku Teks SO
Del Aguila, Juan M.
Westview Press, 1984
Buku Teks
editor, Spyros Doxiadis ; editorial committee, Roger Blaney [and others]
John Wiley & Sons, 1987
Buku Teks