Sadeghi, Mohammad, Esmat Mohammadinasab, and Mojgan Yarahmadi. 2012. “Chitosan-G-poly(acrylic Acid-Co-Acrylonitrile) Hydrogels With Potential Biomedical Applications As Drug Delivery Systems”. Asian Journal of Chemistry 24 (7):2993-96. https://asianpubs.org/index.php/ajchem/article/view/9278.