Hoover, Stewart V., author
Addison-Wesley, 1990
Buku Teks
Laudon, Kenneth C., 1944-, author
The Dryden Press , 1995
Buku Teks
Smith, Marilyn Z., author
Houghton-Mifflin, 1974
Buku Teks
Nanney, T. Ray, author
Prentice-Hall, 1981
Buku Teks
Grant, Clive, author
Prentice-Hall, 1989
Buku Teks