Tugba Basaran, Didier Bigo, Emmanuel-Pierre Guittet and R.B.J Walker.
Routledge, 2017
Buku Teks SO
Knutsen, Torbjorn L.
Manchester University Press, 1992
Buku Teks
Watson, Adam
Routledge, 1992
Buku Teks SO
Malchow, Howard L.
Bloomsbury Academic, an imprint of Bloomsbury Pub, 2016
Buku Teks SO
Griffith, Martin
Routledge, 2002
Buku Teks