ANNEL - AGENCIA NACIONAL DE ENERGIA ELÉTRICA
https://www.aneel.gov.br/arquivos/pdf/caderno1capa.pdf
https://www.aneel.gov.br/arquivos/pdf/caderno2capa.pdf
https://www.aneel.gov.br/arquivos/pdf/caderno3capa.pdf
https://www.aneel.gov.br/arquivos/pdf/caderno4capa.pdf
https://www.aneel.gov.br/arquivos/pdf/caderno5capa.pdf