N. Tabassum, B. Jabi, S. Parveen, A. Aqil, M. K. Dubey, and R. Ahamad, “Simultaneous Estimation of Linagliptin and Ascorbic Acid using UV Spectrophotometry: Development, Validation and Stability-Indicating Method”, ijpbs, vol. 17, no. 2, pp. 10–17, Jun. 2026.