Nandini Sahu, Diksha Gupta, and Ujjwal Nautiyal. “Hydrogel: Preparation, Characterization and Applications”. Asian Pacific Journal of Nursing and Health Sciences 3, no. 1 (June 30, 2020): 1–11. Accessed April 25, 2024. https://apjnh.com/index.php/apjnh/article/view/17.