References
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- Mann, K. H., 1958: Annual fluctuations in sulphate and bicarbonate hardness in ponds. — Limnol. Oceanogr. 3, 418–422.
- Mackereth, F. J. H., 1963: Some methods of water analysis for limnologists. — Freshwater Biol. Assoc. Sci. Publ. No 21.
- Strickland, J. D. H., & Parsons, T. R., 1965: A Manual of sea water analysis. — Bull. Fish. Res. Bd. Can. 125 (2nd Edition, revised).
- Visser, S., 1962: Chemical investigations into a system of lakes, rivers and swamps in S. W. Kigesi, Uganda. — E. Afr. Agric. For. J. 28, 81–86.