MACHADO, K. S.; CARDOSO, F. D.; AZEVEDO, J. C. R.; BRAGA, C. B. <b>Occurrence of female sexual hormones in the Iguazu river basin, Curitiba, Paraná State, Brazil. Acta Scientiarum. Technology, [S. l.], v. 36, n. 3, p. 421–427, 2014. DOI: 10.4025/actascitechnol.v36i3.18477. Disponível em: https://periodicos.uem.br/actascitechnol/index.php/ActaSciTechnol/article/view/18477. Acesso em: 7 set. 2025.