Bohman, James, author
Polity Press , 1991
Buku Teks
Conde, Yago, author
Actar, 2000
Buku Teks
Cahn, Steven M., author
Harper & Row, 1971
Buku Teks
Rorty, Richard
Penguin Books, 1999
Buku Teks
Kukla, Andre, author
[publisher not identified], 2000
Buku Teks