Gaya APA
Hanke, J, E., Wichern, D, W.
(2005).
Business Forecasting
(
IX)
.
USA:
Pearson Prentice Hall.
Gaya MLA
Hanke, John, E.., Wichern, Dean, W..
"Business Forecasting".
IX
USA:
Pearson Prentice Hall,
2005.
Textbook.