Nolan, Dennis R.
West Publishing Company, 1979
Buku Teks
Carrell, Michael R., author
Prentice-Hall, 2001
Buku Teks
Committee Reports, 1974
Buku Teks
Taylor, Benjamin J., author
Prentice-Hall, 1987
Buku Teks
Edited by Matthew W. Finkin, Guy Mundlak
Edward Elgar Publishing, In, 2015
Buku Teks