TY  - BOOK
AU  - B H Helen Joy
AU  - Exemmal J,Guide
TI  - Diagnosis Of Errors And Development Of Remedial Materials For Teaching Chemistry At Vocational Higher Secondary Level
PY  - 2002///
CY  - Thiruvananthapuram
PB  - Dept of Education,University of Kerala
N1  - available at Shodganga@INFLIBNET
ER  -