Dworkin, Ronald
Harvard University Press, 1986
Buku Teks
Dworkin, Ronald, author
Fontana Press, 1991
Buku Teks
Miles, Kate, author
Cambridge University Press, 2015
Buku Teks
Coates, Benjamin Allen, author
Oxford University Press, 2016
eBooks
Griffiths, Percival, Sir, 1899-, author
Ernest Benn, 1969
Buku Teks