1. P.M. Ahn, and L.C. Geiger . 1987 Soils of Laikipia District, KenyaDepartment of Soil Survey, Government of Kenya.
2. R.H. Behnke, I. Scoones, and C. Kerven . 1993 Range Ecology at Disequilibrium. New Models of Natural Variability and Pastoral Adaptation in African SavannasOverseas Development Institute, International Institute for Environment and Development Commonwealth Secretariat, London.
3. Factors Affecting the Distribution of Wild Ungulates on a Ranch in Kenya. Preliminary Report