Giddens, Anthony, author
Cambridge Polity Press 1989,
Buku Teks
Kellner, Douglas
Oxford Polity Press 1989,
Buku Teks
Eggers, Peter MacDonald, author
Routledge, 2018
Buku Teks
Watt, William Montgomery, author
George Allen and Unwin, 1953
Buku Teks
Richmond, Faith
Collins Publishers, 1988
Buku Teks