Siever, Ellen, author
O'Reilly, 2003
Buku Teks
Ratner, David L., author
West Publishing, 1992
Buku Teks
McManis, Charles R., author
West Publishing, 1992
Buku Teks
Stockton, John M., author
West Publishing, 1992
Buku Teks
Gellhorn, Ernest, author
West , 1994
Buku Teks