Estimation of the level of some heavy metals in the treated wastewater returned to the Diyala River from the Rustamiya plant in Baghdad. Journal of the College of Basic Education, [S. l.], v. 18, n. 75, p. 221–235, 2023. DOI: 10.35950/cbej.v18i75.9230. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/9230.. Acesso em: 20 apr. 2025.