Berman, Howard J.
The University of Mincigan, 1982
Buku Teks
MacHarg, Marcia L. , author
Wolters Kluwer/Law & Business, 2012
Buku Teks
Morgan Kaufmann, 2013
eBooks
American Bar Association Press, 1981
Buku Teks
Snow, Edgar, author
Vintage Books, 1971.
Buku Teks