000 00413nam a2200157Ia 4500
003 NIELib
008 220420s9999||||xx |||||||||||||| ||und||
082 _a516.24
_bABE
100 _aAbepitiya, M.H.
_917095
242 _athrikonamithiya (Trigonometry)
245 _aත්‍රිකෝණමිතිය
260 _bGunasena,
_aColombo.
300 _a99p.;
_c18cm
650 _aMathematics
942 _2ddc
_cLM
999 _c61169
_d61169