1. Trends analysis of groundwater: using non-parametric methods in Terengganu Malaysia;Abdullahi;J. Earth Sci. Clim. Change,2015
2. Annual summary of groundwater monitoring in the White Volta River basin;Agyekum,2006
3. The occurrence of groundwater in northeastern Ghana, applied Groundwater studies inAfrica;Agyekum;IAH Sel. Pap. Hydrogeol.,2008
4. Periodic behavior of groundwater level fluctuations in residential areas;Almedeij;J. Hydrol.,2006
5. Groundwater Resources of northern Ghana: initial Assessment of Data Availability, Technical report, college of engineering;Anayah,2009