000 00367nam a2200145Ia 4500
005 20260205054535.0
008 260111s9999||||xx |||||||||||||| ||und||
082 _a371.3078 Sa58E
100 _aSankhala D P.
245 0 _aEducational Technology
260 _aNew Delhi
_bAdhyayan pub.
_c2006
300 _a204p.
690 _aEducational Technology
942 _cBK
999 _c140004
_d140004