Scott, William L.
Boston South-Western College Pub. 1999,
Buku Teks
Bailey, R.E., author
Cambridge University Press, 2005
Buku Teks
Madura, Jeff, author
South-Western College Publishing , 2001
Buku Teks
Madura, Jeff, author
South-Western, 2010
Buku Teks
Fabozzi, Frank J., author
Prentice Hall International, 1996
Buku Teks