Haar, Charles M., author
Little, Brown, 1977
Buku Teks
Bainbridge, David, author
Pearson - Longman, 2002
Buku Teks
Alexander, Gregory S., 1965-, author
Cambridge University Press, 2012
Buku Teks
edited by Adam Mossoff, professor of law, editor; George Mason, University School of Law, Virginia, USA, editor
Edward Elgar, 2013
Buku Teks
Cunningham, Roger A., author
West Pub., 1993
Buku Teks