Mehulkumar, P., R, M. and Middha, A. (2013) “Na-Tpp Cross-Linked Chitosan Microspheres for Controlled Release Of Tramadol Hydrochloride”, Asian Journal of Pharmaceutical Research and Development, 1(1), pp. 86–95. Available at: https://ajprd.com/index.php/journal/article/view/18 (Accessed: 16 May 2024).