00486nam a22001577a 4500 541.3 SEL Selvaratnam,M රසායන විද්‍යාව: Physical Chemistry Part 111 Block 4 :Vol 1 Colombo Open University 1985 93p Physical chemistry PSUIIC2 Bachelor Science :Level 3 chemistry Physical chemistry රසායන වද්‍යාව OUSL BK 860 860 0 0 0 NFIC IC IC GEN 2015-06-02 sinhala :සිංහළ 0 541.3 SEL 001375 2015-06-02 00:00:00 REF