Gudala Harichandana, Praveen Gujjula, Dr. D. Raghava, Dr. Kavala Nageswara Rao. “Design, Formulation and In-Vitro Evaluation of Sustained Release Matrix Tablets of Sitagliptin Using Natural Polymers ”. History of Medicine, vol. 11, no. 2, Oct. 2025, pp. 61-66, https://doi.org/10.48047/.