D., S. R. (2020) “DEVELOPMENT AND VALIDATION OF HPLC METHOD FOR SIMULTANEOUS QUANTIFICATION OF VASICINE, GLYCYRRHIZIN AND PIPERINE IN POLY HERBAL COUGH SYRUP”, International Journal of Current Pharmaceutical Research, 12(2), pp. 15–19. doi: 10.22159/ijcpr.2020v12i2.37480.