“Giant African Snail, Achatina Fulica (Férussac, 1821): An Environmental and Public Health Problem in the Northwestern of Paraná State, Brazil”. Acta Scientiarum. Biological Sciences, vol. 39, nº 3, setembro de 2017, p. 301-7, https://doi.org/10.4025/actascibiolsci.v39i3.35569.