00799nam a2200253Ia 4500003000400000005001700004006001800021007000300039008004100042024001000083037001100093040001800104041001300122100001700135110007100152245010500223260004500328300001900373650001400392700003700406700007100443942001200514999001900526OSt20220930084540.0a|||||r|||| 00| 0ta220926b        |||||||| |||| 00| 0 eng d  a85000  cTheses  aCRLcCRLbeng  2engaeng  aYogesh Kumar  aUniversity of Delhi. Faculty of Education. Department of Education 0aStudy of direct and indirect effects of instructional models on concept based achievement in science  aDelhibUniversity of Delhi India  c2005  a182p.ap.ccm.  aEDUCATION  a Dr. Nirupma Jaimini Gu.9535225  aUniversity of Delhi. Faculty of Education. Department of Education  cDIS2CC  c877389d877389