1. Abdel-Ati, H.A. (1983) Technological Change in Agriculture and Socio-Economic Transformation in Northern Sudan 1900-1980, Unpublished PhD thesis, University of Wales (Swansea).
2. Abdel-Ati H.A. (1986) The Problems of the Agricultural Sector in Sudan: An Account of Policy Gaps, DSRC Seminar Papers No. 74 (November).