1. Alabaster, J.S., Lloyd, R., 1980. Water Quality Criteria for Fresh Water Fish. Butterworths, London
2. Allen, G.H., Carpenter, R.L., 1977. Cited by: Shijun, M., Jingsong, Y. In: Mitsch, W.J., Jørgensen, S. (Eds.), Ecological Engineering – An introduction to Ecotechnology. Wiley Interscience, pp. 185–217
3. Anon, 1980. Pond fish culture in China. Lecture notes for FAO training course. Pearl River Fisheries Research Institute, Guangzhon, China
4. APHA, American Water Works Association and Water Pollution control Federation, 1981. Standard Methods for the Examination of Water and Wastewater, 15th ed. American Public Health Association, Washington, DC, p. 1134
5. Bylinsky, G., 1970. The limited war on water pollution. Fortune Magazine, February, pp. 102–107, 193–195 and 197