Nugent, Neill, author
Macmillan, 1994
Buku Teks
Broberg, Morten P.
United Kingdom Oxford university Press, 2014
Buku Teks
Brown, L. Neville (Lionel Neville), author
Sweet and Maxwell, 1994
Buku Teks
Schermerc, Henry G.
Kluwer Law and Taxation , 1987
Buku Teks
Burrows, F.
Clarendon Press , 1987
Buku Teks