Hornby, Win
Business economics
Prentice-Hall, 2001
Buku Teks
Maisal, Sherman J.
Fluctuations, growth, and forecasting : the principles of dynamic business economics
John Wiley & Sons, 1957
Buku Teks
Hanke, John E.
Business forecasting
Pearson - Prentice Hall, 2009
Buku Teks
Hanke, John E.
Business forecasting
Prentice Halls, 2001
Buku Teks
Hanke, Jonh E.
Business forecasting
Pearson Prentice Hall, 2005
Buku Teks