Ergozhin, E. E., Tugelbaeva L. М., Tausarova, B. R. and Ashkeeva, R. K. (2013) “Complex formation of polyelectrolytes with different groups of heavy and transition metal ions”, International Journal of Biology and Chemistry, 5(1), pp. 44–48. Available at: https://ijbch.kaznu.kz/index.php/kaznu/article/view/81 (Accessed: 23 August 2025).