D. Olowoyo, O. Ajayi, I. Amoo, and A. Ayeisanmi, “Seasonal Variation of Metal Concentrations in Catfish, Blue Crab and Crayfish from Warri Coastal Water of Delta State, Nigeria”, Pak. J. Nutr., vol. 9, no. 11, pp. 1118–1121, Oct. 2010, doi: 10.3923/pjn.2010.1118.1121.