Haitham Kanam, Omer, and Maher Obaid Ahmed. “A Review on Underground Mine Ventilation System”. Journal of Mines, Metals and Fuels 69, no. 2 (March 15, 2021): 62–70. Accessed April 27, 2024. https://informaticsjournals.com/index.php/jmmf/article/view/27334.