Basibuyuk, Mesut, et al. “Use of Waterworks Sludge, Ferric Chloride and Alum for the Treatment of Papermill Wastewater”.
Asian Journal of Chemistry
, vol. 16, no. 1, Mar. 2010, pp. 103-12, https://asianpubs.org/index.php/ajchem/article/view/19537.