Eslami, Akbar, and Seyed Mehdi Ghasemi. “Determination of the Best Interpolation Method in Estimating the Concentration of Environmental Air Pollutants in Tehran City in 2015”. Journal of Air Pollution and Health 3, no. 4 (December 9, 2018): 187-198. Accessed December 12, 2019. http://japh.tums.ac.ir/index.php/japh/article/view/186.