Tavares, R. G. (2018) “Possibility of Phytoxicity of Sewage Treatment Stations in the Germination of Lettuce Seed (Lactuca sativa)”, Revista Geama, 4(2), p. 1–4. Disponível em: https://www.journals.ufrpe.br/index.php/geama/article/view/1546 (Acesso em: 6 dezembro 2025).