Burke, Ronald S., author
McGraw-Hill, 1981
Buku Teks
RMIT University
Palgrave Macmillan, 2012
Buku Teks
Higgins, James M., author
Macmillan, 1994
Buku Teks
Brigham, Eugene F., 1930-, author
The Dryden Press, 1990
Buku Teks
Dale, Ernest, author
McGraw-Hill, 1973
Buku Teks