Abdullah Diyo, et al. “FORMULATION DEVELOPMENT AND CHARACTERIZATION OF MULTIPLE LAYER TABLETS OF IMMEDIATE RELEASE SITAGLIPTIN AND EXTENDED RELEASE METFORMIN”. Journal of Population Therapeutics and Clinical Pharmacology, vol. 31, no. 7, July 2024, pp. 2184-92, https://doi.org/10.53555/8d6dhn24.