1. APT. (2002). Action plan for transportation air pollution in Tehran an recent achievements. Department of the environment, General Secretary, Executive committee on reduction of air pollution in Tehran, Tehran province environmental directorate, 31 pp.
2. Energy Balance 2002. (1380). Islamic Republic of Iran, Ministry of Energy, Deputy of the Energy Department, Office of Energy Planning. Tehran, 2003, 459 pp.
3. Iran Statistical Yearbook. (2001). Iran statistical yearbook 1379. Islamic Republic of Iran, Management & planning organization, Statistical center of Iran. Tehran, 2001, 786 pp. (March 2000–2001).
4. Iran Statistical Yearbook. (2002). Iran statistical yearbook 1330. Islamic Republic of Iran, Management & planning organization, Statistical center of Iran. Tehran, 2002, 862 pp. (March 2001–2002).
5. IRI. (1999). Environmental code of the Islamic Republic of Iran. Department of the environment, Bureau of legislation and parliamentarian affairs. Tehran, 82 pp.