References
- Bumpus, E. D. (1951). Unpublished report to Soil Fertility Conference arranged by E.A.A.F.R.O., 1959.
- Le Mare, P. H. (1962). Progress Reports from Experiment Stations, Season 1961–62, Uganda, page 24. (The Emp. Cott. Grow. Corp.)
- Radwanski, S. A. (1961). “The Soils and Land use of Buganda”, Uganda Dept. of Agriculture Research Memoir Series 1, No. 4.
- Quenouille, M. H. (1959). “Rapid Statistical Calculations” (Charles Griffin and Co.), page 26.
- Bridger, G. L., Boylan, D. R., and Markey, J. W. (1953). Anal. Chem., 25, 336.