Nagam, S. P., A. N. Jyothi, J. Poojitha, S. Aruna, and R. R. Nadendla. “A COMPREHENSIVE REVIEW ON HYDROGELS”. International Journal of Current Pharmaceutical Research, Vol. 8, no. 1, Jan. 2016, pp. 19-23, https://innovareacademics.in/journals/index.php/ijcpr/article/view/10608.