Ha L, Giam D, Trung T. Estimating Consumers’ Willingness - to- Pay for Safe Pork Products in Gia Lam District. VJASVN. 2024;19(9):1229-1240. Accessed September 20, 2024. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/880