MURNI, Sri Wahyu; NURRAHMANINGSIH, Latifah; FITRIANTI, Punden; SANDO, Alex; JAMES, Jefry Roy. Biodiesel Production from Waste Cooking Oil Assisted by Ultrasonic Wave. Eksergi, [S. l.], v. 15, n. 1, p. 20–23, 2018. DOI: 10.31315/e.v15i1.2291. Disponível em: https://jurnal.upnyk.ac.id/index.php/eksergi/article/view/2291. Acesso em: 19 jul. 2025.