Haar, Charles M., author
Little, Brown, 1977
Buku Teks
Cunningham, Roger A., author
West Pub., 1993
Buku Teks
Smith, Roger J., author
Longman, 2000
Buku Teks
Gim Leong Teh
Butterworth, 1992
Buku Teks
Bradbrook, Adrian J., author
The Law Book Company Limited, 1991
Buku Teks