de Aguiar, R. A., P. Marques da Silveira, J. A. Alves Moreira, and A. E. Wander. “ECONOMIC ANALYSIS OF DIFFERENTIAL CULTURAL PRACTICES IN CORN”. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], vol. 38, no. 4, Nov. 2008, pp. 241-8, https://revistas.ufg.br/pat/article/view/3910.