1. Alkmin, V. B. N. (2017). Dimensioning of an activated sludge reactor and techno-economic analysis of alternatives for energy supply. Final graduation work. (Graduation in Environmental Engineering) - Federal University of Itajubá (In Portuguese).
2. ANSA. Lack of water affected 5 billion people by 2050. Época magazine, 2018. Available in: Retrieved Mar 2020 from, https://epocanegocios.globo.com/Mundo/noticia/2018/03/falta-de-agua-afetara-5-bilhoes-de-pessoas-ate-2050-diz-onu.html. (In Portuguese)
3. Akella, A. K., Saini, R. P., & Sharma, M. P. (2009). Social, economical and environmental impacts of renewable energy systems. Renewable Energy, 34(2), 390–396
4. ANA - National Water Agency (2017). Water Resources Situation in Brazil - Full Report. Brasília: ANA.
5. ANA - National Water Agency. Availability and Demand of Water Resources in Brazil. Brasília, 2007. Available in: Retrieved Sep 13, 2018 from, http://biblioteca.ana.gov.br/asp/prima-pdf.asp?codigoMidia=116601&iIndexSrv=1&nomeArquivo=Disponibilidade+e+demandas+de+recursos+h%C3%ADdricos+no+Brasil%2C+2007%2Epdf. (In Portuguese)