DFID, “Addressing the water crisis: Healthier and more productive lives for poor people, strategies for achieving the international development targets,” Department for International Development, UK, 2001.
 S. B. O. Jallow, 4th World Water Forum, Mexico, 2008. http://www.bvsde.ops-oms.org/bvsacg/e/foro4/19%20marzo/Water/RWSSI.pdf.
 B. A. Gleitsmann, M. M. Kroma, and T. Steenhuis, “Analysis of a rural water supply project in three communities in Mali: Participation and sustainability,” Natural Res. Forum, Vol. 31, pp. 142–150, 2007.
 P. A. Harvey, “Borehole sustainability in rural Africa: An analysis of routine field data,” People-Centred Approaches to Water and Environmental Sanitation in 30th WEDC International Conference, Vientiane, Lao PDR, 2004.
 D. E. Kromm and S. E. White, “Groundwater problems,” In: D. E. Kromm, White S. E., (Ed.), Groundwater exploitation in the High Plains, University of Kansas Press, Lawrence, Kansas, pp. 44–63, 1992.
 J. A. Ayamsegna and P. Amoateng-Mensah, “Well monitoring: World Vision’s experience in Ghana,” in 28th WEDC Conference on Sustainable Environmental Sanitation and Water Services, Kolkata (Calcutta), India, 2002.
 M. R. Llamas and P. Martinez-Santos, “Ethical issues in relation to intensive groundwater use,” In M. R. Liamas., E. Custoddio (Ed.), Intensive Use of Groundwater Challenges and Opportunities, Balkema Publishers, The Nertherlands, pp. 3–22, 2005.
 J. Samper, “Intensive use of groundwater in the European Union Water Framework Directive,” In: A. Sahuquillo, J. Capilla, L. Martinez-Cortina, X. Sanchez-Vila, (Ed.), Groundwater Intensive Use, A. A Balkema Publishers, Leiden, the Nertherlands, pp. 93–101, 2005.
 J. A. Akudago, K. Kankam-Yeboah, L. P. Chegbeleh, and M. Nishigaki, “Assessment of well design and sustainability in hard rock systems of northern Ghana,” Hydrogeology J., Vol. 15, pp. 789–797, 2007.
 Water Treatment, 2008. http://www.who.int/water_sanitation_health/hygiene/om/linkingchap6.pdf.
 S. Y. Acheampong, D. Owusu, P. Gyau-Boakye, and N. B. Ayibotele, “Groundwater utilization in the Afram Plains,” International Report, Water Resources Research Institute, Council for Scientific and Industrial Research, Accra, 40pp, 2005.
 A. J. E. Cobbing and J. Davies, “Understanding problems of low recharge and low yield in boreholes: An example from Ghana,” In: D. Stephenson, E.M. Shemang, T. R. Chaoka (Ed.), Water resources of arid areas, A. A Balkema Publishers, London, UK, 2004.
 N. Martin and N. van de Giesen, “Spatial distribution of groundwater production and development potential in the Volta River basin of Ghana and Burkina Faso,” Water Int., Vol. 30, No. 2, pp. 239–249, 2005.
 G. Limited, “Hydrogeological study for borehole siting, training and methodology. 350 Borehole programme in Yendi and East Mamprusi districts,” Northern Region Rural Integrated Programme, Ghana, 1991.
 L. P. Chegbeleh, J. A. Akudago, M. Nishigaki, and S. N. K. Edusei, “Electromagnetic geophysical survey for groundwater exploration in the Voltaian of northern Ghana”, J. Environmental Hydrology, Vol. 17, Paper 9, 2009.
 W. B. Apambire, D. R. Boyle, and F. A. Michel, “Geochemistry, genesis and health implications of fluoriferous groundwaters in the upper regions of Ghana,” Environmental Geol., Vol. 33, No. 1, pp. 13–24, 1997.
 J. Ricolvi, “Selected case studies: Burkina Faso,” In: J. Llyod, (Ed), Water Resources of Hard Rock Aquifers in Arid and Semi-Arid Zones, Paris, United Nations Educational, Scientific, and Cultural Organization, pp. 262–275, 1999.
 S. Ishida, M. Kotoku, E. Abe, M. A. Fazal, T. Tsuchihara, and M. Imaizumi, “Construction of subsurface dams and its impact on the environment,” In: International Conference on Groundwater in Geological Engineering, Bled, Slovennia, September 2003.
 J. A. Akudago, M. Nishigaki, L. P. Chegbeleh, M. A. Alim, M. Komatsu, and K. Kumamaru, “State of the art on filter design and particle clogging; and proposed new numerical approach to redesign,” J. Faculty of Environmental Sci. and Tech. Okayama University, Japan, Vol. 13, pp. 63–66, 2008.
 J. A. Akudago, M. Nishigaki, L. P. Chegbeleh, M. A. Alim, and M. Komatsu, “Filter choice and its relation to well construction and sustainability in rural water supply,” In: Proceedings of the 36th Congress of International Association of Hydrogeolosist, Toyama, Japan, October 26-November 2, 2008.