1. Akiti TT (1980) Etude geochimique et isotopique de quelques aquifere du Ghana. Ph.D. thesis, Universite’ de Paris-Sud
2. Akiti TT (1986) Environmental isotope study of groundwater in crystalline rocks of the Accra Plains. 4th Working Meeting Isotopes in Nature. Proceedings of an advisory group meeting. IAEA, Vienna, September 1986
3. Amuzu AT (1978) The quality of groundwater in the Accra Plains of Ghana. Unpublished Technical Report, Water Resources Research Institute (CSIR), Accra
4. Appelo CAJ, Postma D (1999) Chemical analysis of groundwater. geochemistry, groundwater and pollution. Balkema, Rotterdam
5. Barcelona M, Gibb JP, Helfrich JA, Garske EE (1985) Practical guide for groundwater sampling. Illinois State Water Survey ISWS Contract Report 374