Gaya APA
Hanke, John E. (1998).
Business forecasting (6e).
London:
Prentice Hall.
Gaya Chicago
Hanke, John E.
Business forecasting.
6e
London:
Prentice Hall,
1998.
Buku.
Gaya MLA
Hanke, John E.
Business forecasting.
6e
London:
Prentice Hall,
1998.
Buku.
Gaya Turabian
Hanke, John E.
Business forecasting.
6e
London:
Prentice Hall,
1998.
Buku.