Toledo R dos S, Martins FDC, Freire RL. Waterborne Giardia and Cryptosporidium: contamination of human drinking water by sewage and cattle feces. Semina: Ciênc. Agrár. [Internet]. 2017 Oct. 3 [cited 2026 Mar. 7];38(5):3395-416. Available from: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26459