KUSWANTO, K.; ALAMSYAH, Z.; ARMANDELIS, A.; ZULFANETTY, Z. The Impact of the Efficiency of Rubber Production on the Welfare of Rubber Farmers in Jambi Province. International Journal of Economics and Financial Issues, [S. l.], v. 9, n. 2, p. 80–86, 2019. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/7503. Acesso em: 23 may. 2022.