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Modelstudy Gash Basin. Appendix E (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; NCDWR
Urban environmental guidelines for Nepal (1992) German Agency for Technical Cooperation (GTZ); UDLE - Urban Development through Local Efforts project , Federal Republic of Ge; LUDTC - Local and Urban Development Training Centre, Pokhara