Aronggear, P.R., Santi, D., Langsa, M.H. and Lisna Efiyanti, L.E. 2024. TRANSESTERIFICATION OF USED COOKING OIL USING A CATALYST FROM SAWN WOOD SAWN OF MATOA (Pometia pinnata): VARIATIONS OF MOLE RATIO OF METHANOL AGAINST OIL. Jurnal Natural. 20, 1 (Jun. 2024), 1 - 7. DOI:https://doi.org/10.30862/jn.v20i1.247.