Nguyen, D. T. et al. (2019) “Research of Emission Reduction and Efficiency Improvement of Three Way Catalyst Equipped on Carburetor Motorcycles Using Air Injection on Exhaust Manifold”, Old Journal, (137), pp. 38–43. Available at: https://jst.vn/index.php/old/article/view/607 (Accessed: 2 August 2025).