Bashir, S., Y. Y. Teo, S. Ramesh, K. Ramesh, and M. Rizwan. “SYNTHESIS AND CHARACTERIZATION OF PH-SENSITIVE N-SUCCINYL CHITOSAN HYDROGEL AND ITS PROPERTIES FOR BIOMEDICAL APPLICATIONS”. Journal of the Chilean Chemical Society, Vol. 64, no. 3, Oct. 2019, pp. 4571-4, https://jcchems.com/index.php/JCCHEMS/article/view/1322.