حسن احمد سليمان م. (2016) “PRACTICAL AND THEORETICAL STUDY OF AIR POLLUTION OF THE NORTH GAS COMPANY IN THE CITY OF KIRKUK”, Journal of Engineering and Sustainable Development, 20(3), pp. Ar–40. Available at: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/606 (Accessed: 19 April 2025).