المؤلفون: Sadiq, Ahmed, Ernesto, May, Simon C., Bell, Manju, Haththotuwa
الإتاحة: http://elibrary.worldbank.org/doi/pdf/10.1596/28250
المؤلفون: Global Donor Platform for Rural Development, World Bank, Food and Agriculture Organization of the United Nations
الإتاحة: http://elibrary.worldbank.org/doi/pdf/10.1596/6200