P. K. MOHAPATRA, C. H. SATYAVANI, and S. SAHOO, “The DESIGN AND DEVELOPMENT OF CARVEDILOL GASTRORETENTIVE FLOATING DRUG DELIVERY SYSTEMS USING HYDROPHILIC POLYMERS AND IN VITRO CHARACTERIZATION”, Int J Pharm Pharm Sci, vol. 12, no. 7, pp. 66–73, Jul. 2020.