Ahmad, R., M. A. M. Ishak, K. Ismail, and N. N. Kassim. 2019. “Influence of Microwave Pre-Treated Palm Kernel Shell and Mukah Balingian Coal on Co-Gasification”. Journal of Mechanical Engineering and Sciences 13 (4):5791-5803. https://doi.org/10.15282/jmes.13.4.2019.06.0462.