Thulluru, Ashok, M. Mohan Varma, C M Setty, Pavan Kumar Chintamaneni, and S. Sriharsha vardhan. 2015. “Formulation and Evaluation of Gastro-Retentive Floating Extended Release Metoprolol Tablets Using Sodium Alginate and HPMC K-100M Combination”. International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN) 8 (3):2947-54. https://doi.org/10.37285/ijpsn.2015.8.3.9.