Subzwari, Zammurud, et al. “Determinants of Food Acceptance and Micro-Nutrients Deficiency in Preschoolers: A Case Study of Households from Karachi, Pakistan”. Pakistan Journal of Nutrition, vol. 8, no. 4, Mar. 2009, pp. 321–326, https://doi.org/10.3923/pjn.2009.321.326.