E. I., AKPABIO, EFFIONG D. E., UWAH T. O., and SUNDAY N. I. “FORMULATION AND IN-VITRO EVALUATION OF THEOPHYLLINE HYDROCHLORIDE EFFERVESCENT FLOATING TABLETS: EFFECT OF POLYMER CONCENTRATION ON TABLET BUOYANCY”. International Journal of Pharmacy and Pharmaceutical Sciences 12, no. 1 (January 1, 2020): 59–65. Accessed September 22, 2021. https://innovareacademics.in/journals/index.php/ijpps/article/view/35055.