WHO (World Health Organization), Fact Sheet: Second WHO European Action Plan for Food and Nutrition Policy: Tackling Noncommunicable and Acute Diseases, pp. 1-2.
 World Bank, Poverty and Hunger: Issues and Options for Food Security in Developing Countries, World Bank Policy Study, Washington D. C., 1986.
 M. Nord, M. S. Andrews and S. Carlson, Household Food Security in the United States, Washington D. C., 2005.
 IFT, Number of “Food-Insecure” People Increases Worldwide, Institute of Food Technologists Weekly, 2008.
 M. Nord, M. Andrews and S. Carlson, Household Food Security in the United States, 2008.
 United Nations High Commissioner for Human Rights, All Human Rights for All: Fiftieth Anniversary of the Universal Declaration of Human Rights, Geneva, Switzerland, 1998.
 A. R. Ostadrahimi, S. A. Mahboob, H. Tutunchi, S. Dastgiri and L. Dadgar, “The Prevalence and Extent of Food Insecurity in Two Dimensions (Hidden & Reveal Hunger) in Asad Abad Tabriz,” Journal of Lorestan University of Medical Sciences, Vol. 8, No. 1, 2005, pp. 61-66.
 T. Ramesh, A. D. Motlagh and M. Abdollahi, “Prevalence of Food Insecurity on Urban Household in Shiraz City and It’s Related Socioeconomic Factors,” Iranian Journal of nutrition and food technology, Vol. 1388, No. 4, pp. 53-64.
 N. Piaseu and P. Mitchell, “Household Food Insecurity among Urban Poor in Thailand,” Journal of Nurs Schlarsh, Vol. 36, 2004, pp. 115-121. doi:10.1111/j.1547-5069.2004.04023.x
 J. AliHosseini, “Demographic and Social Factors Associated with Food Insecurity in Households Covered by Imdad Committee,” Tehran (zone-20), Masters Thesis in Demography, Tehran University, 2005.