Beyme, Klaus Von, author
Springer, 2014
Buku Teks
Hewison, Robert, 1943-, author
Methuen, 1995
Buku Teks
Lee, Martyn J.
Routledge, 1993
Buku Teks
Palmer, Monte, author
Thomson, 2006
Buku Teks
Stone, Deborah., author
W.W. Norton & Co. , 2002
Buku Teks