00277nam a22000737a 4500100003800000245010400038260005200142300000900194  aBandusena, H.M. Helika SanJeewani  aAnalysis Metal Content in Ashwaganha and Thipala Ayurvedapowered Drugs in Sri Lankan Herbal market/  aColombo:bInstitute of Chemistry ceylon,c2016.  a40p;