edited by Klaus Knorr and James N. Rosenau
Priceton University Press, 1969
Buku Teks
Douherty, James E., author
J.B. Lippincott, 1971
Buku Teks
Dougherty, James E., author
Longman, 1996
Buku Teks
Fierke, K. M. (Karin M.), author
Polity Press, 2015
Buku Teks
Holsti, Kalevi J., author
Prentice-Hall, 1977
Buku Teks