Eisenberg, Melvin A.
Harcourt Brace, 1994
Buku Teks
Calamari, John D.
West Publishing, 1990
Buku Teks
Calamari, John D.
West Publishing, 1987
Buku Teks
Bailey III, Henry J.
West Publishing, 1988
Buku Teks
Whaley, Douglas J.
Harcourt Brace & Company, 1992
Buku Teks