Christian I. Ilozue, J. K. . Kwaga, and M. . Bello, “Level of awareness and frequency of contacts with common-known exposure factors of Leptospirosis among pig farmers and slaughterhouse workers in Kaduna Metropolis, Kaduna State Nigeria”, Sci. J. Pure Appl. Sci., vol. 5, no. 3, pp. 407-412, Mar. 2016.