A. R. Putri, N. Kalima, B. R. P. Ihsan, and P. T. Hardaniani, “Detection of Mefenamic Acid in Hyperuricemia Herbal Medicine using UV-Vis Spectrophotometry and FTIR Spectroscopy Combined with Chemometrics”, J. Food Pharm. Sci, vol. 13, no. 4, pp. 367-380, Dec. 2025.