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Some aspects of productivity in Sudanese traditional agriculture : the case of the Northern Province
Ali, Ali Abdel Gadir, (1977)
Culture and change along the Blue Nile : courts, markets, and strategies for development
Fruzzetti, Lina, (1990)
Agricultural development and expansion in the Nile Basin : programs, production, implications for U.S. agriculture
Warren, Cline Jefferson, (1968)
Tribal elite : a base for social stratification in modern Sudan
Ahmed, Abdel Ghaffar M., (1976)
Anthropology and development planning in the Sudan : the case of Jonglei Project
Ahmed, Abdel Ghaffar M., (1977)
Planning and the neglect of pastoral nomads in the Sudan
Ahmed, Abdel Ghaffar M., (1980)