1. Sudan energy background; an overview;Omer;Renewable Energy Journal,1998
2. Compilation and evaluation of solar and wind energy resources in Sudan;Omer;Renewable Energy Journal,1997
3. Energy Research Institute (ERI). Renewable energy resources potential in Sudan. Khartoum, Sudan, 1997.
4. Review of hydropower in Sudan;Omer,1997
5. National Energy Administration (NEA). The national energy plan 1985–2000. Khartoum, Sudan, 1985.