Venkateswara Rao, Korlapati, and V.V. Venkatachalam. “Recent Advances in Gastro-Retentive Drug Delivery Systems”. International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN) 9, no. 3 (May 31, 2016): 3221–3254. Accessed September 19, 2024. https://ijpsnonline.com/index.php/ijpsn/article/view/786.