SAYAMPOL, N.; CHANGSALAK, S. Increasing Profit to Maize-Cotton Planting System with Intercrop. Agriculture and Natural Resources, Bangkok, Thailand, v. 33, n. 1, p. 1–9, 1999. Disponível em: https://li01.tci-thaijo.org/index.php/anres/article/view/240422. Acesso em: 17 sep. 2026.