Domke, Martin
Clark Boardman Callahan, 1994
Buku Teks
Wehringer, Cameron K.
Oceana Publications, 1969
Buku Teks
Born, Gary B.
Kluwer law and Taxation Publishers, 1994
Buku Teks
editors, James H. Carter, John Fellas
Oxford University Press, 2013
Buku Teks
Macneil, Ian R.
Oxford University Press, 1992
Buku Teks