Choper, Jesse H., author
Harcourt Brace Legal and Profesional Publications, 1989
Buku Teks
Solomon, Lewis D.
West Publishing Co, 1993
Buku Referensi
Youngquist, Walter
Ill. Dow Jones-Irwin , 1980
Buku Teks
Manning, Bayless, author
Foundation Press, 1990
Buku Teks
Saunders, Anthony, author
McGraw-Hill Education, 2015
Buku Teks