1.
Phan Thị Thúy, Lê Thị Hoàng Oanh. Does sustainability certification improve productivity or expand production scale? Evidence from certified coffee systems in Vietnam’s central highlands. TNJS [Internet]. 2026 Jun. 30 [cited 2026 Aug. 12];20(3):93-101. Available from: https://tnjos.vn/index.php/tckh/article/view/738