GUPTA, S.K., HUNEZA, A. and PATRA, S. 2019. FORMULATION, DEVELOPMENT AND IN VITRO EVALUATION OF TRAMADOL EXTENDED RELEASE TABLETS. International Journal of Pharmacy and Pharmaceutical Sciences. 11, 7 (Jul. 2019), 63–73. DOI:https://doi.org/10.22159/ijpps.2019v11i7.32100.