Nwaichi, E. O., B. G. Ibiama, and J. O. Akaninwor. “Heavy Metals and Polycyclic Aromatic Hydrocarbons in Commonly Consumed Crayfish in Nigeria and Health Risk Implications”. European Journal of Nutrition & Food Safety, Vol. 13, no. 6, Oct. 2021, pp. 44-57, doi:10.9734/ejnfs/2021/v13i630430.