PRACTICAL AND THEORETICAL STUDY OF AIR POLLUTION OF THE NORTH GAS COMPANY IN THE CITY OF KIRKUK. Journal of Engineering and Sustainable Development, [S. l.], v. 20, n. 3, p. Ar–40, 2016. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/606.. Acesso em: 5 may. 2024.