Sim, Stuart, author
Allen & Unwin, 2002
Buku Teks
Kaplan, David M., author
State University of New York Press , 2003
Buku Teks
Geuss, Raymond, author
Cambridge University Press, 1999
Buku Teks
Agger, Ben, author
Falmer Press, 1992
Buku Teks
Cambridge University Press, 1994
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