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The Jonglei Canal: dynamics of planned change in the Twic Area
Sammani, Mohamed O. el-, (1984)
Urbanisation and exploitation : the role of small centres
Ahmad, Abdel Ghaffar Muhammad, (1979)
The impact of the extension of Jonglei Canal on the area from Kongor to Bor
El Sammani, Mohamed Osman, (1977)
Tribal elite : a base for social stratification in modern Sudan
Ahmed, Abdel Ghaffar M., (1976)
Planning and the neglect of pastoral nomads in the Sudan
Ahmed, Abdel Ghaffar M., (1980)
The relevance of indigenous systems of organisation of production to rural development : a case from Sudan
Ahmed, Abdel Ghaffar M., (1977)