Regions and Powers: The Structure of International Security adalah buku tahun 2003 karya Barry Buzan dan Ole Waever. Buku ini membahas pendekatan keamanan sektoral dari sudut pandang Mazhab Kopenhagen.^[1]

1. ^ Felix Ciută (2005), Reviewed work(s): Regions and Powers: The Structure of International Security by Barry Buzan; Ole Wæver, The Slavonic and East European Review, Vol. 83, No. 1 (Jan., 2005), pp. 166-168