edited by Richard P. Halgin
Duskhin , 2000
Buku Teks
Alison Alexander, Jarice Hanson, editor
McGraw-Hill/Dushkin, 2001
Buku Teks
Rourke, John T., author
The Dushkin, 1991
Buku Teks
McGraw-Hill, 2013
Buku Teks
Easton, Thomas, 1944-2014, author
McGraw-Hill, 2013
Buku Teks