Zanol, J., M. A. Fernandez, A. P. M. de Oliveira, C. A. de M. Russo, and S. C. Thiengo. “The Exotic Invasive Snail Achatina Fulica (Stylommatophora, Mollusca) in the State of Rio De Janeiro (Brazil): Current Status”. Biota Neotropica, vol. 10, no. 3, Sept. 2010, //www.biotaneotropica.org.br/BN/article/view/666.