Gaya APA
Wilson, J, H., Keating, B.
(2007).
Business Forecasting ed. 5
(
5)
.
Yogjakarta:
McGraw- Hill.
Gaya MLA
Wilson, J., Holton., Keating, Barry.
"Business Forecasting ed. 5".
5
Yogjakarta:
McGraw- Hill,
2007.
Text.