Ali Abdulkhaliq Kamal. “Removal of Humic Substances from Drinking Water by Microfiltration, Ultrafiltration, and Nanofiltration Membranes”. Eurasian Journal of Engineering and Technology, vol. 16, Mar. 2023, pp. 15-23, https://www.geniusjournals.org/index.php/ejet/article/view/3609.