CHAOVANAPOONPHOL, Y.; SOMYANA, W. Production efficiency of maize farmers under contract farming in Laos PDR. Kasetsart Journal of Social Sciences, [S. l.], v. 41, n. 1, p. 104–109, 2019. Disponível em: https://so04.tci-thaijo.org/index.php/kjss/article/view/229989. Acesso em: 7 may. 2024.