Simulation on Toxic Gases in Vehicle Exhaust Equipped with Modified Catalytic Converter : A ReviewA.M. Leman, Fakhrurrazi Rahman, Afiqah Jajuli, Winardi Sani, Supa’at Zakaria and Dafit FeriyantoMATEC Web Conf., 78 (2016) 01044DOI: https://doi.org/10.1051/matecconf/20167801044