Schecter, Roger E.
West Pub. Co, 1993
Buku Teks
Dukeminier, Jesse
Harcourt Brace & Company, 1991
Buku Teks
Barrett, Margreth
Emanuel Law Outlines, Inc., 1991
Buku Teks
West Publishing, 1995
Buku Teks
McManis, Charles R., author
Thomson , 2004
Buku Teks