Manal Mohamed Fouad. “RP-UPLC Method Development and Validation for Simultaneous Estimation of Vildagliptin With Metformin Hydrochloride and Ciprofloxacin Hydrochloride With Dexamethasone Sodium Phosphate”. World Journal of Pharmaceutical Sciences, vol. 3, no. 9, Sept. 2015, pp. 1755-62, https://wjpsonline.com/index.php/wjps/article/view/uplc-method-estimation-vildagliptin-metformin.