edited by Karl Cordell
Routledge, 1999
Buku Teks SO
editor, Hadi Soesastro
Centre for Strategic and International Studies, 1992
Buku Teks
Palmer, Robert Roswell, 1909-2002
Princeton University Press, 1964
Buku Teks SO
edited by Luciano Cheles, Ronnie Ferguson and Michalina Vaughan
Longman, 1993
Buku Teks SO
Harvie, Christopher
Routledge , 1994
Buku Teks SO