00365nam a2200121Ia 4500008004100000100002500041245012100066260001200187260001100199260000900210300000700219650001700226160109s9999    xx            000 0 und d10aKarunaratne,M.A.T.N.  aCharacterization of cations and anions that contribute to the Hardne of Ground Water available in CKDU endemic Areas  aColombo  bIchemc  c2014  a78  aGround Water