1. American Public Health Association, American Water Works Association and Water Pollution Control Federation. 1985. Standard Methods for the Examination of Water and Wastewater, 16th Edition. American Public Health Association, Washington, D.C., 1268 pp.
2. Developments in Hydrobiology;M. T. Auer,1990
3. Chapra, S. C. & H. F. H. Dobson, 1981. Quantification of the lake typologies of Naumann (surface quality) and Thienemann (oxygen) with special reference to the Great Lakes. J. Great Lakes Res. 7: 182?193.
4. Chapra, S. C. & K. H. Reckhow. 1983. Engineering Approaches for Lake Management. Volume 2. Mechanistic Modeling. Butterworth Publishers, Boston, Massachusetts, 492 pp.
5. Cooke, G. D., E. B. Welch, S. A. Peterson & P. R. Newroth. 1986. Lake and Reservoir Restoration. Butterworths, Boston, 392 pp.