RAMESH, Sharvin; MAT ISA, Norasikin. THE Investigation of Proximate Analysis of Coal and Coconut Shell – A Review. Research Progress in Mechanical and Manufacturing Engineering, [S. l.], v. 3, n. 1, p. 203–208, 2022. Disponível em: https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/3768. Acesso em: 12 mar. 2026.