CARBONIZATION OF SPENT COFFEE GROUNDS: A PATHWAY TO HIGH-ENERGY BIOMASS PELLETS. ASEAN Engineering Journal, [S. l.], v. 15, n. 4, p. 37–45, 2025. DOI: 10.11113/aej.v15.23496. Disponível em: https://journals.utm.my/aej/article/view/23496.. Acesso em: 6 dec. 2025.