M. Bender, 1995
Buku Teks
edited by Lewis M. Alexander
University of Rhode Island, 1969
Buku Teks
edited by George P. Shultz and Thomas L. Whisler
Free Press of Glencoe, 1960
Buku Teks SO
U.P. Law Center, 1976
Buku Teks
Walker, Marianne McGettigan
American law Institute Publishers, 1995
Buku Teks