00412nam a22001457a 4500 20251122141558.0 9789552313530 546.8 PAD Padumadasa, Chayanika 801 Introduction to periodic table: unit II/ Nawala : OUSL, 2012. 74 p. : ill. ; Foundation certificate programme in science : Chemistry 1 : Level 2 BK 5173 5173 0 0 0 IC IC GEN 2025-11-11 purchased 380.00 0 546.8 PAD 007684 2025-11-19 15:36:39 2025-11-19 BK