Von der Mehden, Fred R.
Prentice-Hall, 1969
Buku Teks SO
edited and with Introductions by Paul E. Sigmund
Frederick A. Praeger, 1967
Buku Teks SO
Gamer, Robert E.
Allyn and Bacon, 1976
Buku Teks SO
Morgenthau, Hans J.
McGraw-Hill, 1993
Buku Teks SO
edited by Hans J. Margenthau and Kenneth W. Thomson
Borzoi Books, 1950
Buku Teks SO