000			00430nam a22001697a 4500
999			_c786 _d786
003			OSt
005			20240801165746.0
008			181010b xxu||||| |||| 00| 0 eng d
020			_a8173412332
082			_223 _a371.33 _bRUH
245			_aEducational Technology.
250			_a1st ed.
260			_aDelhi : _bIndian Publishers & Distributors, _c2002.
300			_a362p. _c22 cm.
700			_4Editor _aRuhela, S.P.
942			_2ddc _cBK