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Rozikin NA, Firdaus R. Effect Of Additional Variations Of Etanol Fuel On Exhaust Gas Emissions On Yamaha 125cc Motorcycles: Pengaruh Variasi Penambahan Bahan Bakar Etanol Terhadap Emisi Gas Buang Pada Sepeda Motor Yamaha 125cc. acopen [Internet]. 2021 Aug. 14 [cited 2025 Sep. 4];4:10.21070/acopen.4.2021.1969. Available from: https://acopen.umsida.ac.id/index.php/acopen/article/view/1969