Le, H., Huynh, N., Phan, T. and Tran, H. 2010. BIODIESEL FROM FAT OF TRA CATFISH VIA KOH/γ-Al2O3 CATALYST USING ULTRASONIC MIXING. Science and Technology Development Journal. 13, 2 (Jun. 2010), 72-80. DOI:https://doi.org/https://doi.org/10.32508/stdj.v13i2.2119.