00286    a2200121   4500020001500000082001600015100001900031245003700050250001200087260004100099300001600140650000800156  a9558119008  a343.42bBAL  aBalaratnam, S.  aGoods and services tax Sri Lanka  a1st ed.  aColombobTax publicationc1998g1998  a433p.c21cm  aLaw