Anderson, Ronald A., author
The Lawyers Co-Operative Publishing, 1957
Buku Teks
Dine, Janet, author
Blackstone Press, 1993
Buku Teks
Breet
Butterworth, 1989
Buku Teks
Loewy, Arnold H.
St.paul Minn, 1987
Buku Teks
Fletcher, George P., author
Oxford University Press, 2000
Buku Teks