000			00298nam a22001337a 4500
999			_c5658 _d5658
020			_a9789556808902
082			_bAbe
100			_aAbeydeera, Nilmini
245			_aCoorcinate Geomentry
250			_a1st ed.
260			_aColombo _bSamudra Book Publications _c2019.
300			_a182p.
942			_cL