Gaya APA
Adisaputro, G. et al
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(
vol.Satu)
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Yogyakarta:
BPFE.
Gaya MLA
Adisaputro, Gunawan. et al.
"Business Forecasting Vol. Satu".
vol.Satu
Yogyakarta:
BPFE,
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Teks.