Characteristic of Gasoline Fuels in Indonesia Blend with Varying Percentages of BioethanolBambang Sugiarto, C. Setyo Wibowo, Ardi Zikra, Alva Budi and Try MulyaE3S Web Conf., 67 (2018) 02031DOI: https://doi.org/10.1051/e3sconf/20186702031