OBrien, Jack
Kiplinger Books, 1999
Buku Teks
Hegland, Kenney
West Pub. Co., 1995
Buku Teks
Brown, James J.
John Wiley & Sons, 1994
Buku Teks
Hegland, Kenney F.
Thomson West, 2003
Buku Teks
Belli, Melvin M.,1907-1996
Trial Lawyers Service Company, 1968
Buku Teks