1. Anon 2021a https://coal.nic.in/sites/upload_files/coal/files/coalupload/AnnualReport1819.pdf (Access on March 31, 2020).
2. Anon 2021b https://en.wikipedia.org/wiki/Mining_accident (Access on April 11, 2021).
3. Ensemble method based on artificial neural networks to estimate air pollution health risks;Araujo;Environ. Model. Softw.,2020
4. Ventilation for Acceptable Indoor Air Quality;Ashirae Standard,2018
5. Wireless information and safety system of mines;Bandyopadhyay,2010