000 00338nam a22001457a 4500
005 20221104090512.0
008 221104b |||||||| |||| 00| 0 eng d
020 _a9789557888781
082 _a500
_bSug
100 _aSugnthan. Y
245 _aScience 06
_bPart 02
260 _aColombo
_bLanka book depot
300 _a116p.
942 _cL
999 _c6045
_d6045