TY  - BOOK
AU  - Sen, B.R.
AU  - 
TI  - Effective methods of teaching science
SN  - 81-7169-957-x
U1  - 507 Se474 c2005. 
CY  - New Delhi
PB  - Ajay Verma
KW  - Science
KW  - Study and teaching
KW  - Teaching methods
ER  -