1. Abdellattif, E. M., O. M. Ali, I. F. Khali & B. M. Nyonje, 1993. Effects of sewage disposal into the White Nile on the plankton community. Hydrobiologia 259: 195?201.
2. ASTM, 1991. Standard guide for acute toxicity tests with the rotifer Brachionus. Annual Book of ASTM Standards, vol. 11.04, E 1440, American Society for Testing and Materials, Philadelphia, PA, USA.
3. Bahura, C. K., P. Bahura & M. M. Saxena, 1993. Zooplanktonic community of Shivbari temple tank, Bikaner, 1993. J. Ecobiol. 5: 5?8.
4. Balvay, G. & M. Laurent, 1990. Long-term quantitative evolution of rotifers during eutrophication in Lake Geneva. Aquat. Sci. 52: 162?175.
5. Barbhuyan, S. I. & A. A. Khan, 1992. Studies on the structure and function of benthic ecosystem in an eutrophic body of water; temporal and spatial distribution of benthos. J. Freshwat. Biol. 4: 239?247.