Ph.D. Associate Professor Kh.M. Dusmatov, Mukhamedov I.I., and Nabiyev A.A. “Checking Device for Checking Compressed Air Breathing Apparatus of Fire Fighters”. Texas Journal of Engineering and Technology, vol. 19, Apr. 2023, pp. 46-48, https://zienjournals.com/index.php/tjet/article/view/3801.