000 00345nam a2200145Ia 4500
008 240930s9999||||xx |||||||||||||| ||und||
020 _a9788174734297
082 _a371.33
_bKUM
100 _aKumar.N
245 0 _aEducational technology
260 _aIndia
_bAITBS,
_c2009
300 _a446p.;
_c24cm
650 _aTeaching aids
942 _cLM
999 _c131776
_d131776