S. Ramesh and PROF MADYA TS. DR. NORASIKIN BINTI MAT ISA, “THE Investigation of Proximate Analysis of Coal and Coconut Shell”, rpmme, vol. 2, no. 2, pp. 1017–1022, Jan. 2022, Accessed: Jul. 07, 2024. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/rpmme/article/view/4872