A. . Hussain, S. . Ali, H. A. Shakir, J. I. Qazi, K. . Ali, and N. . Ullah, “Prevalence of Escherichia coli in milk and different milk products sold under market conditions at Lahore”, Sci. J. Anim. Sci., vol. 3, no. 1, pp. 22-26, Jan. 2014.