“DETERMINATION OF THE RUTIN, QUERCETIN AND KAEMPFEROL CONTENTS IN A GHANAIAN POLYHERBAL FORMULATION (EAF-2011) AND ITS RAW MATERIALS USING A SIMULTANEOUS RP-HPLC METHOD” (2015) International Journal of Pharmaceutical Sciences and Drug Research, 7(1), pp. 96–99. doi:10.25004/IJPSDR.2015.070117.