### References
* **Statistical Center of Iran:** Official census and demographic data for the province. * **Tehran Municipality Portal:** Civic information, urban planning, and municipal services. * **Tehran Chamber of Commerce, Industries, Mines and Agriculture (TCCIM):** Economic statistics and business sector insights. * **UNESCO World Heritage Center:** Information regarding the Golestan Palace. * **Ministry of Cultural Heritage, Tourism and Handicrafts (Iran):** Tourism guidelines and heritage site information. * **Tehran Urban and Suburban Railway Operation Company:** Data on the Tehran Metro network and transit planning. * **World Health Organization (WHO):** Reports on air quality challenges and mitigation efforts in the Middle East. * **University of Tehran / Ministry of Science, Research and Technology:** Educational infrastructure and academic rankings.
