371.33/MAN/E 31121 31122 31123 31124 31125

Mangal,S.K.         Essentials of educational technology / S.K.Mangal and Uma Mangal . – Delhi : PHI, 2017         812p.         ISBN9788120337237 : Rs.495.00          – India         1. Educational technology         1. Education, Elementary         1. Computer-assisted instruction – Education, Elementary         I. Mangal, Uma, Author