Toye, William, editor
Oxford University Press , 1959
Buku Teks
Dworkin, Ronald
Harvard University Press, 1986
Buku Teks
Griffiths, Percival, Sir, 1899-
Ernest Benn, 1969
Buku Teks
Ohara, Daniel T
Duke University Press, 2003
Buku Teks
Charlesworth, M.P.
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Buku Teks