How, C. B., Taib, N. M., & A. Mansor, M. R. (2019). Performance and Exhaust Gas Emission of Biodiesel Fuel with Palm Oil Based Additive in Direct Injection Compression Ignition Engine. International Journal of Automotive and Mechanical Engineering, 16(1), 6173–6187. https://doi.org/10.15282/ijame.16.1.2019.7.0469