Hanke, John E., author
Illinois Irwin, 1994
Buku Teks
Olson, Charles L., author
Scott, Foresman, 1983
Buku Teks
Pelosi, Marilyn K.
John Wiley & Sons, 2002
Buku Teks
Lind, Douglas A., author
McGraw-Hill Education, 2019
Buku Teks
Doane, David P., author
McGraw-Hill, 2016
Buku Teks