RESEARCH ARTICLE
Vol. 35 (2) June 2023, p. 268-280

ESTERIFICATION OF FREE FATTY ACID FROM SLUDGE PALM OIL USING ZEOLITESULFONATED CARBON FROM SUGAR CANE CATALYSTS


DOI: https://doi.org/10.21894/jopr.2022.0051  |   Published Online: 23 August 2022
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