Smith, Roger J., author
Longman, 2000
Buku Teks
Sykes, Edward I
Law Book Co., 1978
Buku Teks
Marsh, Lucy Allen
Little, Brown and Company, 1992
Buku Teks
Gim Leong Teh
Butterworth, 1992
Buku Teks
Thomas, Meryl, author
Blackstone Press LTD, 2000
Buku Teks