Levine, David M., 1946-
Prentice-Hall, 1999
Buku Teks SO
Levine, David M., 1946-
Prentice-Hall, 1999
Multimedia
Dretzke, Beverly J.
Prentice-Hall, 2001
Buku Teks SO
Weida, Nancy C.
Duxbury, 2001
Buku Teks SO
Mayes, Timothy R.
South Western Cengage Learning, 2012
Buku Teks SO