00422nam a22001337a 4500999001500000020001500015082001500030245005900045260003700104300001100141700002100152942000800173952010700181  c5242d5242  a8173412332  a371.33 SAT  aEducational technology /c[edited by] Satya Pal Ruhela  aDelhi :bIndian Publishersc2002  a362 p.  aSatya Pal Ruhela  cSTS  00104070816/3aAIISHbAIISHd2020-01-03l0o371.33 SATp12556r2020-01-03 00:00:00w2020-01-03ySTS