Nguyễn, Anh, Dung Nguyễn, Tuấn Hoàng, Chi Nguyễn, and Yến Đỗ. “ECONOMIC EFFICCIENCY ANALYSIS OF ORGANIC FARMING MODELS IN TUYEN QUANG PROVINCE”. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY 9, no. 2 (June 2, 2023). Accessed April 20, 2024. http://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/932.