00409nam a22001457a 4500 541. SEL Selvaratnam,M භෞතික රසායනය : Physical Chemistry :Vol 1 Colombo Lake House 1984 247p Physical chemistry chemistry Physical chemistry භෞතික රසායනය OUSL BK 901 901 0 0 0 NFIC IC IC GEN 2015-06-06 85.00 0 541. SEL 004839 2015-06-06 00:00:00 REF