Walthall, Wylie A., author
Harper and Row, 1987
Buku Teks
Harris, Phil, author
Weidenfeld and Nicolson, 1993
Buku Teks
Hames, Joanne Banker, author
Prentice-Hall, 1998
Buku Teks
Jaap Hage, Antonia Waltermann, Bram Akkermans, editors
Springer International Publishing, 2017
eBooks
Maher, Frank, author
Law Book, 1991
Buku Teks