Hovenkamp, Herbert, author
West Publishing, 1993
Buku Teks
Ross, Stephen F., author
The Foundation Press, 1993
Buku Teks
Hildreth, Ronald B.
Practising Law Institute, 1993
Buku Teks
Baxter, J.W.
Sweet and Maxwell, 1973
Buku Teks
edited by Mark T. Banner
American Bar Association, 1985
Buku Teks