00330nam a22000977a 4500100001700000245008200017260005300099300000700152500001700159650005600176  aCooray,M.C.D  aAnalytical and Spectroscopic Studies of Naturally Occurring Plant Indicatores  aRajagiriya bInstitute of chemistry Ceylonc2012  a47  aDessertation  achemistry | plant indicators| spectroscopic studies