000 00391nam a2200145Ia 4500
003 NIELib
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082 _a371.33
_bUNE
110 _9710
_aUNESCO
245 _aLow cost educational materials . Vol.III
260 _bUnesco Regional Office,
_c1984.
_aBangkok :
300 _a117p.;
_bill.;
_c27cm
650 _aSchool Education
942 _2ddc
_cSR
999 _c19916
_d19916