Nakan, U., B. . Tolkyn, G. . Mun, G. . Yeligbayeva, N. Tileubekov, N. . Serikbay, and E.-S. . Negim. “Swelling Studies on poly(n, N-Dimethyl Acrylamide-Co-Acrylic Acid) Hydrogels”. International Journal of Biology and Chemistry, vol. 14, no. 2, Dec. 2021, pp. 82-87, doi:10.26577/ijbch.2021.v14.i2.011.