Brooks, Brian S., author
Tax and Business Law Publishers, 1990
Buku Teks
Burton, Steven J.
West Publishing Co., 1995
Buku Teks
Whincup, Michael H., 1929-, author
Butterworth-Heinemann, 1995
Buku Teks
Anson, Sir William R
3124, 1961
Buku Teks
Anson, William R., Sir, author
Clarendon Press, 1947
Buku Teks