Thanh H. Trinh, Nga T. T. Tran, Khang T. To, Giang T. Do. BIODIESEL SYNTHESIS FROM WASTE COOKING OIL USING CATALYST DERIVED FROM SEA CRAB SHELL AND NICKEL OXIDE. HUIT_OJS [Internet]. 2025 Dec. 28 [cited 2026 Aug. 26];25(6):3-12. Available from: http://huitjournal.vn/index.php/huit-j-sci/article/view/326