M. S. Zaman Shakil and M. G. Mostafa, “Water Quality Assessment of Paper Mills Effluent Discharge Areas”, Al-Nahrain J. Sci., vol. 24, no. 3, pp. 63–72, Sep. 2021, Accessed: May 22, 2026. [Online]. Available: https://anjs.edu.iq/index.php/anjs/article/view/2423