Meng, Hongling, Kaiguang Zhang, Mingting Ba, and Yanmin Sun. “SPATIAL AUTOCORRELATION ANALYSIS OF CITY PM2.5 CONCENTRATION IN HENAN”. International Journal of Research -GRANTHAALAYAH 7, no. 8 (August 31, 2019): 454–462. Accessed April 25, 2024. https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG19_A08_2644.