Burge, David A.
John Wiley & Sons, 1980
Buku Teks
Hildreth, Ronald B.
Practising Law Institute, 1993
Buku Teks
Rosenberg, Peter D.
Clark Boardman, 1975
Buku Teks
editor, Douglas W. Wyatt
American Bar Association, 1984
Buku Teks
editor, Mark T. Banner
American Bar Association, 1986
Buku Teks