Sonam, , et al. “Formulation, Development and Evaluation of Gastroretentive Sustained Release Tablets of Lansoprazole Using Natural Polymer”. Journal of Drug Delivery and Therapeutics, vol. 11, no. 5-S, Nov. 2021, pp. 108-12, https://doi.org/10.22270/jddt.v11i5-S.5087.