Gaya APA
Santoso. (2009).
Business Forecasting .
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Santoso.
Business Forecasting.
Jakarta:
Elex Media Komputindo,
2009.
Text.
Gaya MLA
Santoso.
Business Forecasting.
Jakarta:
Elex Media Komputindo,
2009.
Text.
Gaya Turabian
Santoso.
Business Forecasting.
Jakarta:
Elex Media Komputindo,
2009.
Print.