GUPTA RITU, and BAJPAI MEENAKSHI. “FORMULATION OPTIMIZATION OF TIZANIDINE HYDROCHLORIDE NANOPARTICLES USING 32 FACTORIAL DESIGNS”. International Journal of Pharma and Bio Sciences, vol. 7, no. 1, Mar. 2016, pp. 161-73, https://ijpbs.net/index.php/journal/article/view/4852.