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. Tay Nguyen Journal of Sciences, [S. l.], v. 20, n. 3, p. 93–101, 2026. Disponível em: https://tnjos.vn/index.php/tckh/article/view/738. Acesso em: 12 aug. 2026.