Kirk, James J., author
McGraww-Hill, 1997
Buku Teks
Kroehnert, Gary, author
North Ryde, 2005
Buku Teks
Leigh, Elyssebeth, author
The McGraw-Hill Companies Inc., 2001
Buku Teks
Leigh, Elyssebeth
McGraw-Hill, 2001
Multimedia
Wright, Andrew, 1937-, author
Cambridge University Press , 1994
Buku Teks