000 nam a22 7a 4500
999 _c1247
_d1247
005 20191121121621.0
008 191121b xxu||||| |||| 00| 0 eng d
020 _a9789550701742
040 _cSLIDA
082 _223
_a823
100 _976
_aRupasinghe, P.D.
_qRupasinghe, Pramudith D.
245 _aBayan
260 _aGampaha:
_bMinsara Publishers;
_c2018.
300 _avii,244p.:
_c21.5cm.
942 _2ddc
_cLEN