1. A. P. H. A., A. W. W. A. and W. P. C. F., 1989. Standard methods for the examination of water and waste water. 17th edn, American Public Health Association, Washington, D.C., 1587 pp.
2. Beadle, L. C., 1981. The inland waters of tropical Africa. An introduction to tropical Africa. An introduction to tropical limnology. 2nd edn. Longman, London, New York.
3. Beauchamp, R. S. A., 1939. Hydrology of Lake Tanganyika. Int. Rev. ges. Hydrobiol. 39: 316–353.
4. Beauchamp, R. S. A., 1940. Chemistry and hydrography of Lakes Tanganyika and Nyasa. Nature 3695: 253–256.
5. Beauchamp, R. S. A., 1946. Lake Tanganyika. Nature 3981: 183–184.