George, F.H., author
Abacus Press, 1984
Buku Teks
Coates, C. Robert, author
McGraw-Hill, 1978
Buku Teks
Hayes, Douglas A., author
Macmillan, 1967
Buku Teks
Lund, Philip J., author
Oliver & Boyd, 1971
Buku Teks
Woods, Ivan
The Law Book Company Limited, 1989
Buku Teks