Utete B, Mabika N. [RETRACTED] Parasites from the fish <em>Clarias gariepinus</em> as potential biondicators for heavy metal pollution in freshwater systems. URJ [Internet]. 2012 Dec. 1 [cited 2024 Apr. 19];4(2):165-73. Available from: https://revistas.uned.ac.cr/index.php/cuadernos/article/view/4