TY  - BOOK
AU  - NCERT
TI  - Process based resource materials in physical science for teachers at secondary level : materials developed in the workshop held at SCERT Shillong from 28.10.93 - 6.11.93
U1  - 507 PRO (N-R) 
PY  - 1994///
CY  - Bhubaneswar
PB  - NCERT ,RlE
KW  - Science - Study and teaching
ER  -