Hobden, Stephen
Routledge, 1998
Buku Teks
Tugba Basaran, Didier Bigo, Emmanuel-Pierre Guittet and R.B.J Walker.
Routledge, 2017
Buku Teks
Knutsen, Torbjorn L.
Manchester University Press, 1992
Buku Teks
Watson, Adam, author
Routledge, 1992
Buku Teks
Malchow, Howard L., author
Bloomsbury Academic, an imprint of Bloomsbury Pub, 2016
Buku Teks