Gaya APA
Hanke, John E., Reitsch, Arthur G.. (1998).
Business Forecasting (Sixth edition.).
United States of America:
Prentice Hall.
Gaya Chicago
Hanke, John E., Reitsch, Arthur G..
Business Forecasting.
Sixth edition.
United States of America:
Prentice Hall,
1998.
BUKU.
Gaya MLA
Hanke, John E., Reitsch, Arthur G..
Business Forecasting.
Sixth edition.
United States of America:
Prentice Hall,
1998.
BUKU.
Gaya Turabian
Hanke, John E., Reitsch, Arthur G..
Business Forecasting.
Sixth edition.
United States of America:
Prentice Hall,
1998.
BUKU.