Abdel-Hameid, N.H. (2009). A Protective Effect of Calcium Carbonate Against Arsenic Toxicity of the Nile Catfish, Clarias gariepinus. <i>Turkish Journal of Fisheries and Aquatic Sciences</i>, <i>9</i>,  191-200. http://doi.org/10.4194/trjfas.2009.0211