Sarnoff, David, author
McGraw-Hill, 1968
Buku Teks
Carroll, Dennis, author
Macmillan, 1987
Buku Teks
Pol, E.H.
Leiden Luctor et Emargo 1953
Buku Teks
Hendel, Charles W., author
The Bobbs-Merrill, 1963
Buku Teks
Kiernan, Brian
Currency Press, 1996.
Buku Teks