Hiremath S, Koganole P, Honnalli SS, et al. Area Under Curve and Zero Order UV-Spectrophotometric Methods: Development and Validation for the Simultaneous Estimation ofCaffeine and Metformin in the Formulation. TWIST. 2024;19(1):70-81. Accessed August 11, 2025. https://twistjournal.net/twist/article/view/104