Robiah, Marhaini and Rosyada, A. 2023. CO-SOLVENT TETRAHYDROFURAN IN THE PRODUCTION OF BIODIESEL FROM USED COOKING OIL USING THE TRANSESTERIFICATION METHOD. International Journal of Engineering Technologies and Management Research. 10, 3 (Mar. 2023), 1–12. DOI:https://doi.org/10.29121/ijetmr.v10.i3.2023.1274.