“OPTIMIZATION STUDIES OF OIL PALM EMPTY FRUIT BUNCH LIQUEFACTION FOR CARBON CRYOGEL PRODUCTION AS CATALYST IN LEVULINIC ACID ESTERIFICATION”. Jurnal Teknologi (Sciences & Engineering) 80, no. 2 (January 9, 2018). Accessed December 19, 2024. https://journals.utm.my/jurnalteknologi/article/view/10501.