“A Comparative In-Vitro study for Evaluation of different Marketed brands of Metformin Hydrochloride (500 mg) Tablets”, IJPLS, vol. 11, no. 7, pp. 6738–6745, Jul. 2020, Accessed: Dec. 16, 2025. [Online]. Available: http://ijplsjournal.com/index.php/ijpls/article/view/356