K. M. Elizabeth and G. Esther Rani, “Bioremediation of Phenol, Ammonia, Nickel, Hexavalent Chromium and Iron from Steel Plant Effluent of Visakhapatnam City by Live, Killed and Immobilized Bacteria”, ajc, vol. 16, no. 3, pp. 1269–1273, Jun. 2016.