Henry-Unaeze, H.N. “A Comparative Study of Micronutrients Content of Complementary Foods Used by Igbo and Hausa Mothers in Umuahia, Abia State, Nigeria”. Pakistan Journal of Nutrition, vol. 10, no. 4, Mar. 2011, pp. 322–324, https://doi.org/10.3923/pjn.2011.322.324.