1. Adverse health effects of outdoor air pollutants
2. Cost effective environmental control technology for utilities
3. Nitrogen Oxides (NOx),Why and How They are Controlled, Technical Report EPA-456/F-99-006R, US Environmental Protection Agency, Research Triangle Park, NC 1999.
4. EPA Air Pollution Control Cost Manual, Technical Manual EPA-452/B-02-001, 6th ed., US Environmental Protection Agency, Research Triangle Park, NC 2001.
5. Carbon monoxide poisoning — a public health perspective