“DEVELOPMENT AND VALIDATION OF A HPLC METHOD FOR THE SIMULTANEOUS DETERMINATION OF PSEUDOEPHEDRINE, DEXTROMETHORPHAN, AND TRIPROLIDINE IN THEIR COMBINED COUGH AND COLD SYRUPS”. 2017. JOURNAL OF ADVANCES IN CHEMISTRY 13 (11): 6011-17. https://doi.org/10.24297/jac.v13i11.5911.