Rozikin, Nur Afif, and Rachmat Firdaus. 2021. “Effect Of Additional Variations Of Etanol Fuel On Exhaust Gas Emissions On Yamaha 125cc Motorcycles”.
Academia Open
4 (August), 10.21070/acopen.4.2021.1969. https://doi.org/10.21070/acopen.4.2021.1969.