1. Andrade, C.A., L.F.M. Silva, A.M.M. Pires, and A.R. Coscione. 2013. Mineralization of carbon and nitrogen in soil after successive applications of sewage sludge. Pesquisa Agropecuária Brasileira 48: 536–544. https://doi.org/10.1590/S0100-204X20130005000010.
2. Bessou, C., F. Ferchaud, B. Gabrielle, and B. Mary. 2011. Biofuels, greenhouse gases and climate change. In Sustainable agriculture, vol. 2, ed. E. Lichtfouse, M. Hamelin, M. Navarrete, and P. Debaeke. Dordrecht: Springer. https://doi.org/10.1007/978-94-007-0394-0_20.
3. Bordonal, R.O., J.L.N. Carvalho, R. Lal, E.B. De Figueiredo, B.G. De Oliveira, and N. La Scala Jr. 2018. Sustainability of sugarcane production in Brazil A review. Agronomy for Sustainable Development 38 (2): 13. https://doi.org/10.1007/s13593-018-0490-x.
4. Brazil. 2006. CONAMA Resolution 375, of August 29, 2006. Defines criteria and procedures for the agricultural use of sewage sludge generated in sanitary sewage treatment plants and their by-products, and takes other measures. Available at: https://www.gov.br/mma/pt-br. Accessed in 04 de June 2021.
5. Brazil. 2010. Law 12305, from August 2, 2010. Institutes the National Solid Waste Policy; amends law 9605, of February 12, 1998; and makes other arrangements. Available at: https://www.gov.br/mma/pt-br. Accessed in 04 de June 2021.