000 00351nam a2200145Ia 4500
008 201126s9999 xx 000 0 und d
041 _aeng
020 _a9788120337237
100 _aMANGAL S K AND MANGAL UMA
245 _aESSENTIALS OF EDUCATIONAL TECHNOLOGY
260 _bPHI LEARNING
_c2017
300 _a812
690 _aFET
999 _c19817
_d19817