Baum, Steven K, author
Cambridge University Press, 2008
Buku Teks
Kuper, Leo
Vale University Press , 1982
Buku Teks
Dutton, Donald G., author
Praeger Security International, 2007
Buku Teks
Universitas Indonesia, 2006
UI - Skripsi (Membership)
Akhavan, Payam, author
Cambridge University Press, 2014
Buku Teks