Andersen, William R., author
Carolina Academic Press, 2010
Buku Teks
Jain, MP , author
LexisNexis, 2011
Buku Teks
Clancey, Richad, author
Sweet & Maxwell, 2011
Buku Teks
Schwartz, Bernard, author
Pitman, 1950
Buku Teks
Jones, David P., author
Carswell, 2009
Buku Teks