Akhmadjonov I. L., Sobirova N. E., and Shakirova M. M. “CHEMICAL PROPERTIES OF HYDROLYZED POLYACRYLONITRILE”. Galaxy International Interdisciplinary Research Journal, vol. 11, no. 11, Nov. 2023, pp. 1029-37, https://internationaljournals.co.in/index.php/giirj/article/view/4745.