R. S. Joshi, A. K. Nangare, D. S. Sanap, and S. M. Sase, “Development and Validation of UV-Spectrophotometric Method for Estimation of Metformin Hydrochloride and Pioglitazone in Tablet Dosage Form”, J. Drug Delivery Ther., vol. 9, no. 4-A, pp. 381–384, Aug. 2019, doi: 10.22270/jddt.v9i4-A.3499.