000 00332nam a2200133Ia 4500
005 20250913131718.0
008 250913s9999||||xx |||||||||||||| ||und||
041 _aEnglish
245 0 _aReaserch Bulletin 1
260 _aTrincomalee :
_bMinistry of Education,
_c1990
300 _a12p.;
_c31cm
650 _aBulleting
942 _cBT
999 _c154913
_d154913