Okolie, Uchenna V., and Ijeoma O. Ehiemere. “Use of Soy Bean Products As Cheap Sources of Protein in Child-Nutrition in Akpuoga Nike Community, in Enugu State South East, Nigeria”. Pakistan Journal of Nutrition, vol. 8, no. 4, Mar. 2009, pp. 491–494, https://doi.org/10.3923/pjn.2009.491.494.