Wilkinson, Joseph W., author
John Wiley & Sons, 1989
Buku Teks
Wilkinson, Joseph W., author
Prentice-Hall, 1987
Buku Teks
Dull, Richard B., author
South-Western Cengage Learning, 2012
Buku Teks
Gelinas, Ulric J., author
South-Western , 2005
Buku Teks
Boockholdt, James L., author
McGraw-Hill, 1999
Buku Teks