000			00299nam a22001337a 4500
003			OSt
005			20230918115618.0
008			230918b |||||||| |||| 00| 0 eng d
040			_cDDC
100			_aVanaja, M.
245			_aEducational technology _h(English)
300			_a250p.
942			_2ddc _cBOOK
999			_c11968 _d11968