Wan-Ying WongSteven LimYean Ling PangSiew Hoong ShuitWei-Hsin ChenKeat-Teong Lee2024-10-302024-10-302020-07https://doi.org/10.1016/j.scitotenv.2020.138534https://dspace-cris.utar.edu.my/handle/123456789/5720Synthesis of renewable heterogeneous acid catalyst from oil palm empty fruit bunch for glycerol-free biodiesel productionjournal-article