Franco, R. M. B.; Branco, N.; Leal, D. A. G. Environmental Parasitology: Methods of Concentration and Detection of Cryptosporidium Spp. and Giardia Spp. In Water Samples. Rev Patol Trop 2012, 41 (2). https://doi.org/10.5216/rpt.v41i2.19320.