Henningsen, Rodney J
Harcourt Brace Jovanovich, 1981
Buku Teks
Garrett, James J.
Practising Law Institute, 1978
Buku Teks
Garland, Norman M., author
McGraw-Hill, 2008
Buku Teks
White, Bertha R., author
Oceana Publications, 1970
Buku Teks
Lindquist, John H.
Sage Publications, 1988
Buku Teks