000			00401nam a2200133Ia 4500
005			20250913131718.0
008			250913s9999||||xx |||||||||||||| ||und||
041			_aEnglish
245		2	_aA Diagnostic study of the performance G.C.E (Ordinary level) Mathematics: Reaserch Bulletin 1
260			_aBatticaloa : _bDep. of Education, _c1988
300			_a23p.; _c32cm
650			_aBulleting
942			_cBT
999			_c154960 _d154960