KARRAR, Osama; EL HASSAN, B. M. Thermal Power Stations Air Pollution In Khartoum- Sudan. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 24, n. 6, p. 215–229, 2015. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/4906. Acesso em: 8 oct. 2025.