Brown, Keith C.
South-Western, 2009
Buku Teks
Jones, Charles P.
John Wiley & Sons, 1998
Buku Teks
Reilly, Frank K.
The Dryden Press, 1997
Buku Teks
Reilly, Frank K.
South-Western Cengage Learning, 2012
Buku Teks
Fischer, Donald E.
Prentice-Hall, 1991
Buku Teks