Deakin, Edward B., author
Toppan , 1988
Buku Teks
Chatfield, Michael
Harcourt Brace Jovanovich, 1983
Buku Teks
Blocker, John G.
McGraw-Hill , 1972
Buku Teks
Henke, Emerson O.
PWS-Kent Pub. , 1991
Buku Teks
Carter, William K., 1951-, author
Dame/Thomson Learning, 2002
Buku Teks
Hammer, Lawrence H., author
South-Western, 1993
Buku Teks