A. . Arafa, S. . Farag, M. A. . Mahdaly, and , M. M. . Badr, “BIODEGRADATION OF PETROLEUM INDUSTRY OILY SLUDGE BY BACTERIAL CONSORTIUM AND ITS APPLICATION IN LAND FARMING”, Pak. J. Biotechnol, vol. 13, no. 1, pp. 1–11, Mar. 2016.