00520nam a2200169 a 450000500170000002000180001708200160003510000290005124500510008026000500013130000240018169000270020596400160023299700130024899900190026195200700028020251203111015.0  a9788131303658  a371.33bSIN  aSingh, Y.K ... [et. al.]  aEducational techologybManagement and planning  aNew DelhibA P H Publishing Corporationc2008  avi,271p.c23cm.cHB  aEducational technology  bcdefg_  a133807 C  c110541d110541  00104070aPUbPUd2008-12-22g556.00l0o371.33 SINp133807yBK