Raval Kashyap, R. K., and U. S. U. Srinivasa. “Development And Validation Of HPLC Method For The Simultaneous Estimation Of Chlorthalidon And Metoprolol Succinate In Bulk And Dosage Form”. International Journal of Pharmaceutics and Drug Analysis, vol. 1, no. 2, Dec. 2013, pp. 1-14, https://www.ijpda.org/index.php/journal/article/view/6.