ALJAMALI, N. M., S. J. MOHAMMED, W. H. ALI, K. M. HUSSEIN, and D. H. SALIH. “POLLUTION BY SEWAGE, CHEMICAL WASTES AND TOXIC MATERIALS: A REVIEW”. Quantum Journal of Engineering, Science and Technology, vol. 4, no. 3, Sept. 2023, pp. 38-46, https://qjoest.com/index.php/qjoest/article/view/118.