Brooks, Brian S., author
Bedford/St. Martins,, 2002
Buku Teks
by Brian S. Brooks [and others]
Martins Press, 1992
Buku Teks
Berner, R. Thomas, author
Allyn and Bacon, 1992
Buku Teks
Freeland, Cynthia A., author
Oxford University Press, 2001
Buku Teks
Myers, Bernard S., author
McGraw-Hill, 1967
Buku Teks