000 00280nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aKumar, J. Prasanth
245 0 _aEffectiveness Of Distance Education System
260 _aNew Delhi
_bDPH
_c2007
300 _a143p.
942 _cBK
999 _c12871
_d12871