JANHAVI R RAO. “HPTLC Method Development and Validation for Simultaneous Estimation of Metoprolol Succinate and Felodipine in Bulk Drugs and Combined Dosage Forms”. International Journal of Pharma and Bio Sciences, vol. 9, no. 2, June 2018, pp. 1-7, doi:10.22376/ijpbs.2018.9.2.p1-7.