Haydar, Sajjad, Ghulam Hussain, Husnain Haider, and Attiq-ur-Rehman. “Wastewater Characterization of Selected Industries in Quaid-E-Azam Industrial Estate: Treatment Options and Impact on Groundwater Quality: Treatment Options and Impact on Groundwater Quality”. Proceedings of the Pakistan Academy of Sciences: Part B (Life and Environmental Sciences) 53, no. 2 (June 16, 2021): 93–102. Accessed September 26, 2022. https://www.ppaspk.org/index.php/PPAS-B/article/view/319.