00573nam a22001937a 450000500170000000800410001702000290005804000190008704100120010608200160011810000170013424500690015126000400022030000170026050400440027765000270032170000210034885000100036920240206162152.0240203b        |||||||| |||| 00| 0 eng d  a9788120337237cRs.795.00  aLoreto College  aEnglish  a371.33bMAN  aMangal, S.K.  aEssentials of educational technologycS.K. Mangal and Uma Mangal  aDelhi bPHI Learning         c2022  a812p.b23cm.  aIncludes author index and subject index  aEducational technology  4AuthaMangal,Uma  aLCLIB