Edited by John Hogan, Michael Howlett
Palgrave Macmillan, 2015
Buku Teks
edited by Peter Taylor-Gooby
Oxford University Press, 2013
Buku Teks
Kay, Adrian., author
Edward Elgar, 2006
Buku Teks
Boyes, William J., author
South Western Publishing, 1984
Buku Teks
Smith, Kevin, author
Westview Press, Boston, Massachusetts : Credo Reference, 2013
Buku Teks