TY  - BOOK
AU  - Yogesh Kumar
AU  -  Dr. Nirupma Jaimini Gu.
AU  - University of Delhi. Faculty of Education. Department of Education
ED  - University of Delhi. Faculty of Education. Department of Education
TI  - Study of direct and indirect effects of instructional models on concept based achievement in science
PY  - 2005///
CY  - Delhi
PB  - University of Delhi India  
KW  - EDUCATION
ER  -