Madukosiri, C.H., and G.I. Adoga. “Elemental Status of Pregnant and Lactating Women in Bassa L.G.A of Plateau State, Nigeria”. Pakistan Journal of Nutrition, vol. 10, no. 5, Apr. 2011, pp. 401–404, https://doi.org/10.3923/pjn.2011.401.404.