William, Neha Ronald, et al. “Comparative Evaluation Of Zero-Order, First-Derivative, And Second- Uv Spectrophotometric Methods For Quantitative Estimation Of Diclofenac, Ibuprofen, And Atorvastatin”. INTERNATIONAL JOURNAL OF ADVANCES IN SIGNAL AND IMAGE SCIENCES, Feb. 2026, pp. 665-77, https://doi.org/10.29284/5rm1xe19.