1. American Society for Testing and Materials (ASTM), 1996. Standard Test Method for Nicotine and 3-Ethenylpyridine in Indoor Air. Designation: D 5075-96. American Society for Testing and Materials, ASTM Committee on Standards, Philadelphia, USA, pp. 400–407.
2. Indoor air quality in homes, offices and restaurants in Korean urban areas—indoor/outdoor relationships;Baek;Atmospheric Environment,1997
3. BLRA (Brewers and Licensed Retailers Association), 2003. Managing smoking issues in public houses: the public places charter. On line 20/03/2003. http://www.smokefree-northwest.net/pages/Brewer%20and%20Licensed%20retailers-Smoking.htm
4. ETS-RSP particulate marker factors;Carrington;Indoor and Built Environment,2001
5. Tracers for assessing exposure to environmental tobacco smoke;Daisey;Environmental Health Perspectives,1999