Henderson, James A.
Little, Brown, 1992
Buku Teks
by Alvin S. Weinstein [and others]
John Wiley & Sons, 1978
Buku Teks
Whaley, Douglas J.
Little, Brown & Co., 1993
Buku Teks
Practising Law Institute, 1975
Buku Teks
Phillips, Jerry J.
West Publishing Company, 1993
Buku Teks