1. Soils of the Kumasi Region, Ashanti Region, Ghana;Adu,1992
2. West African Soils;Ahn,1970
3. Mineralogy and chemical changes in the hardening of laterite;Alexander,1956
4. The role of termites in soil formation in the tropical semi-deciduous forest zone, Ghana;Awadzi;Dan. J. Geogr.,2004
5. Classification of soils modified by termite activity in tropical moist semi-deciduous forests of West Africa;Breuning-Madsen;Soil Surv. Horizon,2004