Alak, G., Atamanalp, M., Topal, A., Arslan, H., Oruç, E., Altun, S. 2013. Histopathological and Biochemical Effects of Humic Acid Against Cadmium Toxicity in Brown Trout Gills and Muscles. Turkish Journal of Fisheries and Aquatic Sciences, 13: 315-320. doi: 10.4194/1303-2712-v13_2_13