Sousa, Lucas Oliveira de, et al. “Decomposition of Soybean Price Variations in State of Mato Grosso from 1996 to 2012”. Revista de Política Agrícola, vol. 23, no. 4, Feb. 2015, pp. 35-42, https://rpa.sede.embrapa.br/RPA/article/view/952.