Narasimham, Lakshmi, and Vasant Dnyandeo Barhate. 2011. “Physico-Chemical Characterization of Some Beta Blockers and Anti-Diabetic Drugs - Potentiometric and Spectrophotometric PKa Determination in Different Co-Solvents”. European Journal of Chemistry 2 (1):36-46. https://doi.org/10.5155/eurjchem.2.1.36-46.371.