Tillinghast, David R.
Matthew Bender, 1984
Buku Teks
edited by Dennis Campbell
Kluwer Law International, 1995
Buku Teks
Spitz, Barry
Butterworth, 1972
Buku Teks
Muller, Johann
IBFD, 2005
Buku Teks
Folsom, Ralph Haughwout
St. Paul, Minn, 1995
Buku Teks