Assessment Efficiency Evaluation of Al-Diwaniya Sewage Treatment Plant in Iraq. Journal of Engineering, [S. l.], v. 20, n. 02, p. 20–32, 2014. DOI: 10.31026/j.eng.2014.02.02. Disponível em: https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/1996. Acesso em: 29 apr. 2025.