1. Anonymous. (1967). La nappe du Continentale Intercalate. Chron. Hydrogeol., No. 11, 97–102
2. “Hydraulics of Groundwater.”;Bear,1979
3. Ground-water resources of the Lowell area. Massachusetts;Baker;U.S. Geol. Serv., Water-Supply Pap.,1964
4. Problems associated with development of ground water in igneous and metamorphic rocks—a case study in Ghana;Bannerman;Groundwater,1973
5. Qanat systems in Iran;Beaumont;Bull. IASH,1971