Yoshitake, Kiyohiko
Sage Publications, 1973
Buku Teks
McNaughton, Wayne L., author
John Wiley & Sons, 1960
Buku Teks
Keith, Lyman A., author
McGraw-Hill, 1975
Buku Teks
Dull, Richard B., author
South-Western Cengage Learning, 2012
Buku Teks
Laudon, Kenneth C., 1944-, author
Prentice-Hall, 2000
Buku Teks