1. Hoddinott J. Choosing Outcome Indicators of Household Food Security. Washington DC: IFPRI; 2001
2. Food and Agricultural Organisation of United Nations (FAO). Feeding the World: Aggregate Agriculture. Rome: FAO; 2010
3. Nord M. Introduction to Item Response Theory applied to Food Security Measurement: Basic Concepts, Parameters, and Statistics. Technical Paper, Rome. FAO; 2014
4. FAO, IFAD and WFP. The State of Food Insecurity in the World 2015. Meeting the 2015 International Hunger Targets: Taking Stock of Uneven Progress. FAO: Rome; 2015
5. Pretty J, Toulmin C, Williams S. Sustainable intensification in African agriculture. International Journal of Agricultural Sustainability. 2011;9(1):5-24