Obasi, K. O., E. S., O. J. N., E. E. U., and O. M. I. “Analysis of Heavy Metals Concentration in Prawn (Macrobrachium Sp) Harveted from Gberikoko River, in Sapele Delta State; Nigeria”. The International Journal of Science & Technoledge, vol. 3, no. 8, Aug. 2015, http://internationaljournalcorner.com/index.php/theijst/article/view/124602.