000 00569nam a2200193Ia 4500
005 20250508164815.0
008 008 250505s9999 xx 000 0 eng d
037 _aTheses
040 _aFEDL
_beng
_cFEDL
041 _aeng
_2eng
084 _a507, YOG/TH
_qFEDL
100 _aYogesh Kumar
245 0 _aStudy of direct and indirect effects of instructional models on concept based achievement in science
260 _c2005
300 _a181p.
546 _aPH.D Thesis (Delhi University)
942 _cTH
_h507, YOG/TH
999 _c1391305
_d1391305