M. J. Pirzada, S. A. Memon, N. D. Bheel, F. Ali, N. A. Gabol, and A. W. Abro, “Synthetic Grey Water Treatment Through FeCl3-Activated Carbon Obtained from Cotton Stalks and River Sand”, Civ Eng J, vol. 5, no. 2, pp. 340–348, Feb. 2019.