Hydrogeological databank. Appendix C (1989) Water resources assessment and development project in the Sudan (WADS); Institute of Applied Geoscience; TNO; National Corporation for the Development of Rural Water Resources; NCDRWR
Information centre. Appendix A (1989) Water resources assessment and development project in the Sudan (WADS); Institute of Applied Geoscience; TNO; National Corporation for the Development of Rural Water Resources; NCDRWR
Technical committe Kassala. Appendix D (annexes) (1989) Water resources assessment and development project in the Sudan (WADS); Institute of Applied Geoscience; TNO; National Corporation for the Development of Rural Water Resources; NCDRWR
Technical committee Kassala. Appendix D (1989) Water resources assessment and development project in the Sudan (WADS); Institute of Applied Geoscience; TNO; National Corporation for the Development of Rural Water Resources; NCDRWR
Hydrogeological map of Sudan. Appendix B (1989) Water resources assessment and development project in the Sudan (WADS); Institute of Applied Geoscience; TNO; National Corporation for the Development of Rural Water Resources; NCDRWR; Senden, W.J.M.K