1. Yield and nitrogen accumulation in five cassava varieties and their subsequent effects on soil chemical properties in the forest/savanna transitional agroecological zone of Ghana;Adjei-Nsiah;Journal of Soil Science and Environmental Management,2010
2. Influence of NPK fertilizer on tuber yield of early and late-planted cassava in a forest alfisol of south-western Nigeria;Agbaje;African Journal of Biotechnology,2004
3. Allwaters Consult Limited, 2012. Hydrological study of the Black Volta Basin – Upper West Region water audit section. Diagnostic study of the Black Volta Basin in Ghana final report. Available from: http://www.gwiwestafrica.org/sites/default/files/6_gh8_hydrological_study_of_the_black_volta_basin.pdf (accessed 01 June 2015).
4. Amikuzuno, J., 2013. Climate Change Implications for Smallholder Agriculture and Adaptation in the White Volta Bas in of the Upper East Region of Ghana. 4th International Conference of the African Association of Agricultural Economists. Available from: http://ageconsearch.umn.edu/bitstream/160478/2/Climate Change Impact on Smallholder Farmers in.pdf (accessed 23 May 2015).
5. Amisigo, B.A., 2005. Modelling riverflow in the Volta Basin of West Africa: A data driven framework. PhD Thesis. Ecology and Development Series No. 34. ZEF Bonn. Cuvillier Verlag, Göttingen. Available from: http://repository.tudelft.nl/islandora/object/uuid:dcda25cb-d872-4e6d-bca2-1bb0401c8d78?collection=research (accessed 12 November 2015).