Marasca, L., Ramser, C. A. de S. and Souza, A. M. (2022) “Rice agricultural produtivity in Brazil: a spatial analysis”, Sigmae, 11(1), pp. 33–39. Available at: http://publicacoes.unifal-mg.edu.br/revistas/index.php/sigmae/article/view/1886 (Accessed: 17 May 2024).