الفترة:
Subjects: Self Determination; Sudan
Subjects: South Sudan; Economic aspects; Petroleum
Subjects: Africa; Climatic changes; Sustainable development
Subjects: Petroleum; Petroleum products; Pollution; Water resources; Water
Subjects: Islam; Islamic awakening; State
Subjects: Sudan; Conflict resolution
Subjects: Management; Performance
Subjects: Sudan; Political conditions; Sudanese
Subjects: Sudan; Aids
Subjects: Sudan; Economic conditions; Economic development