Tamilselvi N, et al. “Analytical Method Development and Validation of RP-HPLC Method for the Simultaneous Determination of Amlodipine Pesylate and CelecoxiP In Pulk And Pharmaceutical Dosage Form”. International Journal of Pharma and Bio Sciences, vol. 11, no. 4, Dec. 2020, pp. 14-21, https://ijpbs.net/index.php/journal/article/view/6869.