OPTIMIZATION OF DEVELOPMENT PERFORMANCEANDQUALITY IMPROVEMENT OF BIODIESEL FROM OIL FRACTIONOF LIQUID WASTE OF PALM OIL PROCESS BY USING ULTRASONIC WAVES. Jurnal Teknologi Industri Pertanian, [S. l.], v. 22, n. 1, 2012. Disponível em: https://journal.ipb.ac.id/jurnaltin/article/view/5591. Acesso em: 31 dec. 2025.