Sutcliffe, J.T.
Macmillan, 1967
Buku Teks
Levinson, Charles
George Allen & Uniwin, 1972
Buku Teks
Foenander, Orwell De R.
The Law Book, 1962
Buku Teks
Ellem, Bradon
New South Wales University Press, 1989
Buku Teks
Williams, John Henry
Macmillan, 1951
Buku Teks