Friedmann, Wolfgang, 1907-1972, author
Melbourne University Press, 1950
Buku Teks
Jones, David P., author
Carswell, 2009
Buku Teks
Wade, H. W. R.
Clarendon Press, 1971
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1991
Buku Teks
Wade, H.W.R.
Claredon Press, 1994
Buku Teks