Combining Therapy of Vildagliptin with Metformin Improves Glycemic Control than Using Metformin Alone in The Treatment of Type 2 Diabetes Mellitus. Int. J. Pharm. Sci. Drug Res. [Internet]. 2024 May 30 [cited 2025 Jul. 19];16(3):446-51. Available from: https://ijpsdronline.com/index.php/journal/article/view/9549