000 00275nam a22001097a 4500
003 OSt
100 _aNehru, R. S. S.
245 _aEncyclopaedia of E-Learning : Essentials of E-Learning Vol. 02
260 _aNew Delhi
_bAPH Publishing
_c2013
300 _ap.227
942 _2ddc
_cBK
999 _c4490
_d4490