Nur, M. ., & Erna Wahyu P., A. (2020). Analysis of Impact Due to Octan 92, 95, and Eco Racing Value Mixture for Engine Performance and Emission of Gas. Airman: Jurnal Teknik Dan Keselamatan Transportasi, 3(1), 42–49. https://doi.org/10.46509/ajtk.v3i1.156