Lang, Jon
Sweet and Maxwell, 2006
Buku Teks
Bainbridge, David
Pearson - Longman, 2002
Buku Teks
Emanuel, Steven
Emanuel Law Outlines, 1993
Buku Teks
Bernhardt, Robert
West Publishing, 1991
Buku Teks
Arnaud Nuyts, editor
Kluwer Law International, 2008
Buku Teks