«ANALYSIS OF THE ECONOMIC EFFICIENCY AND INFLUENCING FACTORS OF SHAN TUYET TEA PRODUCTION AMONG FARMING HOUSEHOLDS IN YEN BINH COMMUNE, THAI NGUYEN PROVINCE». Isagoge - Journal of Humanities and Social Sciences 5, no. 1 (noviembre 11, 2025): 523–547. Accedido septiembre 6, 2026. https://www.telosjournals.com.br/ojs/index.php/isa/article/view/276.