edited by Maurice Mullard
Routledge, 1995
Buku Teks
Dorey, Peter, author
SAGE, 2014
Buku Teks
edited by Robert Gilpin and Christopher Wright
Columbia University Press , 1965
Buku Teks
Stein, Theodore J., author
Columbia University Press, 2001
Buku Teks
de Vries, Michiel S.., author
Palgrave Macmillan , 2010
Buku Teks