1. U.S. EPA 1999 Use of Monitored Natural Attenuation at Superfund, RCRA Corrective Action and Underground Storage Tank Sites
2. U.S. EPA 2004 Treatment Technologies for Site Cleanup: Annual Status Report 11th Edn.
3. Factors limiting bioremediation technologies;Boopathy;Bioresource Technol.,2000
4. A biochemical approach to some problems of environmental pollution;Dagley;Essays Biochem.,1975