RITA SINGH, RAJIV GARG, MASTAN SINGH, and JITENDRA K CHAUDHARY. “RISING AMBIENT AIR POLLUTION AND RISK OF RESPIRATORY IMPAIRMENT IN TRAFFIC POLICEMEN”. International Journal of Pharma and Bio Sciences 5, no. 4 (December 31, 2014): 293–298. Accessed July 24, 2026. https://ijpbs.net/index.php/journal/article/view/3749.