?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Akbar%2C+Rudi&rft.aulast=Akbar&rft.aufirst=Rudi&rft.title=Perbedaan+Performa+Bahan+Bakar+Premium+88+dan+Pertamax+92+Terhadap+Hasil+Emisi+Gas+Buang+Mobil+I-VTEC&rft.degree=Bachelor&rft.date=4+August+2016&rft.inst=Universitas+Muhammadiyah+Prof.+Dr.+HAMKA