Jacobstein, J. Myron
Foundation press, 1979
Buku Teks
Campbell, Enid Mona, author
The Law Book, 1967
Buku Teks
Surrency, Erwin C.
An Oceana Publication, 1966
Buku Teks
Cohen, Morris L., author
St. Paul Minn, 1992
Buku Teks
The Law Book Company , 1988
Buku Teks