Leong Boon Soon, Anika Zafiah M. Rus, Sulaiman Hasan. “Continuous Biodiesel Production Using Ultrasound Clamp on Tubular Reactor”. International Journal of Automotive and Mechanical Engineering 8 (December 9, 2022): 1396–1405. Accessed November 21, 2024. https://journal.ump.edu.my/ijame/article/view/8187.