Tolong jelaskan mengenai Lihat pula dari Kedaulatan Westfalen

Camilleri, J. and Falk, J. (1992), The End of Sovereignty?: The Politics of a Shrinking and Fragmenting World, Edward Elgar, Aldershot.

Leurdijk, J. (1986), Intervention in International Politics, Eisma BV, Leeuwarden, Netherlands.

Phil Williams: Violent Non-State Actors and National and International Security, ISN, 2008.