1. G.B. Misra, Mine environment and ventilation (Oxford University Press, 1986)
2. Centers for Disease Control and Prevention. The National Institute for Occupational Safety and Health (NIOSH), Mining Topic: Respiratory Diseases. https://www.cdc.gov/niosh/mining/topics/respiratorydiseases.html
3. S. Khodabandeh-Shahraki, M. Azizzadeh-Forouzi, Effects of gradual exposure to carbon dioxide gas on the blood pressure status of workers in coal mines of Kerman province, Iran. ARYA atherosclerosis 8(3), 149 (2012)
4. 911metallurgist: Underground Mine Ventilation. https://www.911metallurgist.com/blog/underground-mine-ventilation. Accessed on 13 Feb 2023
5. M. Anas, S.M. Haider, P. Sharma, Gas monitoring and testing in underground mines using wireless technology. Int. J. Eng. Res. Technol. (IJERT) 6, 412–416 (2017)