Choper, Jesse H.
Harcourt Brace Legal and Profesional Publications, 1989
Buku Teks
Conviser, Richard J.
HBJ, 1990
Buku Teks
Whaley, Douglas J.
Harcourt, Brace Jovanovich Legal and Professional Publications, 1992
Buku Teks
Bays, Alfred W.
Macmillan, 1931
Buku Teks
Harcourt Brace Jovanovich Legal and Professional Publications, 1984
Buku Teks