Silva, Manoel Eduardo da, et al. “Anthelmintic Efficacy of Cratylia Argentea (Desv.) Kuntze Against the Gastrointestinal Nematodes of Sheep”. Semina: Ciências Agrárias, vol. 38, no. 5, Oct. 2017, pp. 3105-12, doi:10.5433/1679-0359.2017v38n5p3105.