Prakash Mamillapalli, Surya, et al. “A New Validated Stability Indicating RP-HPLC Method for Simultaneous Quantification of Impurities of Fluticasone Propionate and Salmeterol Xenafoate in Metered Dose Inhalation Aerosol”. Asian Journal of Chemistry, vol. 33, no. 4, Mar. 2021, pp. 867-72, doi:10.14233/ajchem.2021.23101.