S. W. Teoh, L. W. Yoon, W. Y. Wong, and J. H. Low, “Application of Black Liquor Derived Carbonaceous Compound as Fuel in Direct Carbon Fuel Cell”, ijie, vol. 14, no. 2, pp. 146–156, Jun. 2022, Accessed: May 13, 2024. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/10949