?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=RIONI%2C+IRWAN&rft.aulast=RIONI&rft.aufirst=IRWAN&rft.date=25+August+2011&rft.inst=Sekolah+Tinggi+Teknologi+Dumai&rft.tpages=6&rft.degree=Other&rft.title=FORECAST+VOLUME+PENJUALAN+MINYAK+MENTAH+PADA+PT.+CHEVRON+PACIFIC+INDONESIA+DI+DUMAI