Alves, G. de L., and A. N. da Paixão. “Land Burnings on the Effects of Welfare of Families in Tocantins: An Application of Contingent Valuation Method”. Informe GEPEC, vol. 16, no. 1, Jan. 2012, pp. 176-91, doi:10.48075/igepec.v16i1.4054.