Janaway, Christopher, author
Blackwell, 2005
Buku Teks
Holdcroft, David
Butterworth, 1991
Buku Teks
Davies, Howard, author
Butterworth, 1991
Buku Teks
Manning, Peter J., author
Oxford University Press, 1990
Buku Teks
edited by Matthew Kieran
Blackwell, 2006
Buku Teks