АsаnovА., and G. Matniyazova. “Flocculative Clarification of Natural and Industrial Turbid Waters in the of Presence Carboxide-, Amide-, Amine Containing Polyelectrolytes”. Chemical Bulletin of Kazakh National University, Vol. 67, no. 3, Sept. 2012, pp. 155-9, doi:https://doi.org/10.15328/chemb_2012_3155-159.