YANG, Z.; YU, M.; LOVELL, A. Analysis of the Comparative Advantage of Texas Upland Cotton. Texas Journal of Agriculture and Natural Resources, [S. l.], v. 32, p. 1–11, 2019. Disponível em: https://txjanr.agintexas.org/index.php/txjanr/article/view/381. Acesso em: 25 apr. 2024.