Nguyễn A, Nguyễn D, Hoàng T, Nguyễn C, Đỗ Y. ECONOMIC EFFICCIENCY ANALYSIS OF ORGANIC FARMING MODELS IN TUYEN QUANG PROVINCE. SJ TTU [Internet]. 2023Jun.2 [cited 2024Apr.26];9(2). Available from: http://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/932