Arnaud Nuyts, editor
Kluwer Law International, 2008
Buku Teks SO
Congress of the U.S., Office of Technology Assessment, 1986
Buku Teks SO
WIPO, 2007
Buku Teks SO
Bainbridge, David
Pearson - Longman, 2002
Buku Teks SO
Barrett, Margreth
Emanuel Law Outlines, Inc., 1991
Buku Teks SO