ABDALLAH, Mohamed Nazih. Wastewater Operation and Maintenance in Egypt (Specific Challenges and Current Responses). International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 18, n. 2, p. 125–142, 2014. Disponível em: https://gssrr.org/JournalOfBasicAndApplied/article/view/3150. Acesso em: 15 sep. 2025.