ADSORPTION OF MALACHITE GREEN DYE USING SPENT COFFEE GROUND BIOCHAR: OPTIMISATION USING RESPONSE SURFACE METHODOLOGY. Jurnal Teknologi (Sciences & Engineering), [S. l.], v. 83, n. 1, p. 27–36, 2020. DOI: 10.11113/jurnalteknologi.v83.14904. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/14904.. Acesso em: 22 dec. 2024.