1. Ageeb, O.A.A. and Hamdoun, A.M. (1997),A Project For In‐depth Analysis of NARIs in 26 West Asian and North African Countries (WANA), Sudan Case Study, FAO/ARC – Sudan.
2. WHY ARE BUREAUCRATS SLOW ADOPTERS? THE CASE OF WATER MANAGEMENT IN THE GEZIRA SCHEME
3. Von Thunen's Economics
4. FAO (2000),Food Crops and Shortages, No. 3, June, Food and Agriculture Organization of the United Nations, via delle Terme di Caracalla, 00100 Rome, available at: www.fao.org/WAICENT/faoinfo/economic/giews/english/liens/sude.htm.
5. The adoption of agricultural innovations