Anjos, Kellyane Pereira dos, and Francisco José Peixoto Rosário. “Growth Sources of Sugar Cane Production and the Proposition of a Sectorial Policy in Alagoas”. Revista de Política Agrícola, vol. 21, no. 4, June 2015, pp. 120-3, https://rpa.sede.embrapa.br/RPA/article/view/269.