1. Standard Methods for the Examination of Water and Wastewater;APHA,1992
2. Microtox assessment of anaerobic bacterial activity;Atkinson,1989
3. Summary report on the effects of heavy metals on the biological treatment processes;Barth;J. Wat. Pollut. Control Fed.,1965
4. Benzene: Basic and Hazardous Properties;Cheremisinoff,1979
5. Biodegradation Techniques for Industrial Organic Wastes;DeRenzo,1980