Hill, Christopher
LLP, 2003
Buku Teks
Yvonne Baatz, editor
Informa Law from Routledge, 2018
Buku Teks
Samuelson, Paul Anthony, 1915-2009
McGraw-Hill, 2010
Buku Teks
Sloman, John
Harvester Wheatsheaf, 1994
Buku Teks
Lipsey, Richard G.
Harper Collin, 1996
Buku Teks