1. Abbott, P.C., Hurt, C., Tyner, W.E., 2008. What's driving food prices? Farm Foundation Issue Report. Farm Foundation, Oak Brook, IL, USA.
2. Alwang, J., Siegel, P., Jørgensen, S., June 2001. Vulnerability: a view from different disciplines. Social protection discussion paper series no. 0115. Human Development Network, World Bank.
3. Aslam, A., Szczuka, J., UNICEF, 2012. Children in an urban world. UNICEF, New York (N.Y.)
4. Measuring food insecurity;Barrett;Science,2010
5. Food security and food assistance programs;Barrett,1999