Miller, Roger LeRoy, author
West Educational Publishing, 1999
Buku Teks
Corley, Robert Neil, author
Prentice-Hall, 1974
Buku Teks
Chorley, Lord, author
Sir Issac Pitman & Sons, 1961
Buku Teks
Bonell, Michael, author
Transnational Juris Publications, 1994
Buku Teks
Vermeesch, R.B., author
Butterworth, 1995
Buku Teks