AHMAD, S., P. KHABIYA, T. AU, and A. RAHEMAN BAKHSHI. “QUALITY BY DESIGN APPROACH TO DEVELOP STABILITY INDICATING REVERSED-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY METHOD DEVELOPMENT FOR AMBROXOL”. Asian Journal of Pharmaceutical and Clinical Research, vol. 14, no. 12, Dec. 2021, pp. 44-49, doi:10.22159/ajpcr.2021.v14i12.42939.