Allen, Carol Vestall
Appleton & Lange, 1997
Buku Teks
Hoover, Stewart V.
Addison-Wesley, 1990
Buku Teks
Laudon, Kenneth C., 1944-
The Dryden Press , 1995
Buku Teks
Smith, Marilyn Z.
Houghton-Mifflin, 1974
Buku Teks
edited by Rachel Brown-Chidsey, Kristina J. Andren
The Guilford Press, 2005
Buku Teks