REFERENCES
- Alusa, A.L and Gwynne, P.M. (1978). The occurrence of the 1978 dry spells during the East African long rains. Research Report No. 2/78 East African Institute of Meteorological Training and Research, Nairobi.
- Atwoki, K. (1975). A factor analytical approach for the determination of rainfall regions in Uganda. East African Geographical Jnl. 2, 9–26.
- Baker. J.K. (1977). A background to the study of drought in East Africa. African Environmental Special Report, Vol. 6. pp. 74–82.
- Barry, R.G. (1973). Evaporation and transpiration In: Climate in Review (G. McBoyle Ed.).
- Bhalme, H.N. and Mooley, D.A. (1979). Large scale droughts, floods and monsoon circulation. Monthly Weather Review VOL. 108, pp. 1197–1211
- Griffiths, J.F. (1958). Annual rainfall in East Africa. Nature 181, p. 1331.
- Gibbs, W.J. and Maher, J.W. (1967). Rainfall deciles as drought indicators. Bulletin No. 48 Commonwealth Bureau Meteorology; Melbourne.
- Heathcote, R.L. (1969). Drought in Australia; A problem of perception. Geographical Review LIX (2), 175–194.
- Houman, C.E. (1975). Problems of Evaporation assessment in the water balance. World Meteorological Organization Note No. 285, Project Report No. 13, W.M.O.H.H.D.
- Maher, J.V. (1966). Drought assessment by statistical analysis of rainfall. Document 27 World Meteorological Organization Regional Seminar on Agrometeorology Nov-Dec., Melbourne.
- McCulloch, J.S.G. (1965). Tables for the rapid computation of the Penman estimate of evaporation. E. Afr. agric. For. J. 30, 268–295.
- Ogallo, C. (1980). Regional classification of East African rainfall stations into homogenous groups using the method of Principal Component analysis. Statistical Climatology Development in Atmospheric Science, Vol. 30, by Ikeda et al.(Eds). pp. 256–216.
- Onyango, J.W. (1987). An assessment of annual crop performance during drought in Northern Lake Basin, Kenya. Master of Arts Thesis, University of Wales, UK.
- Penman, H.L. 1948. Natural evaporation from open water, bare soil and grass. Proceedings of Royal Soc. A 193. pp. 120–145.
- Nieuwolt, S. (1974). Seasonal droughts in East Africa. E. Afr. agric. For. J., 43(3), 208–22.
- Thomthwaite, C.W. (1946). An approach towards a rational classification of climate. Geographical Review 138, 55–94.
- Woodhead, T. (1968). Studies of potential evaporation in Kenya. East African Agric, and Forestry Research Organisation. Ministry of Natural Resources, Republic of Kenya.
- Woodhead, T. (1970). Mapping potential evaporation for tropical East Africa; The accuracy of the Penman estimate derived from indirect assessment of radiation and windspeeds. Proceedings of Reading Symposium of July 1970; World Water Balance International Association of Scientific Hydrology. pp. 233–241.
- Woodhead, T. and Wawern, E.S. (1970). Variability of potential evaporation in East Africa. Experimental Agriculture, 6, 1–55.