Pham, Phong Van, and Hong Khanh Dieu Nguyen. “Study on Conversion of Vegetable Oil Deodorizer Distillate to Biodiesel Using Mesoporous Oxo-Phosphated Sulfated Zirconia”. <i>Vietnam Journal of Science and Technology</i> 55, no. 1 (February 9, 2017): 44–53. Accessed January 10, 2026. https://vjs.ac.vn/jst/article/view/8116.