MALIK, S. R. Air Quality at Gas-Oil Field at Nara District Khairpur Sindh, Pakistan. Journal of the Pakistan Institute of Chemical Engineers, [S. l.], v. 38, n. 1, p. 39–44, 2011. Disponível em: http://piche.org.pk/journal/index.php/jpiche/article/view/21. Acesso em: 20 apr. 2024.