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020 _a9789553049391
040 _aSLIDA
_cSLIDA
_dSLIDA
041 _aSin
082 _223
_a363.34
_bපෙරේරා
100 _91280
_aPerera,V.
_qPerera,Victor.
245 _aආපදා හා ආපදා කළමනාකරණය
_cPerera,V.
_hSin
246 _aApada saha apada kalamnaranaya
_hSin
_iSin
260 _aColombo:
_bS.Godage,
_c2021.
300 _a423p.:
_bill.,Photographs,Tables,;
_c21cm.
942 _2ddc
_cLEN