Duy, Vu Dinh, Nguyen Thi Ha, Do Thi Diem Thuy, Nguyen Thi Thanh Hai, and Nguyen Khanh Dieu Hong. 2013. “Study on Preparation of KNO3/γ-Al2O3 Catalyst for the Synthesis of Methyl Ester Used As a Component for Biokerosene Blend”. Petrovietnam Journal 9 (September), 43-53. https://pvj.vn/index.php/TCDK/article/view/703.