TY  - GEN
AU  - Matcha, Ashok 
TI  - Advancements in science & technology: for UPSC and State Civil Services examinations 
SN  - 9789356814608
U1  - 507.1 23rd ed. 
PY  - 2025///
CY  - New Delhi
PB  - Career Launcher
KW  - Science
KW  - Study and teaching
KW  - Teachers
KW  - Training of
KW  - Study skills
KW  - Science education
N1  - for UPSC and state Civil service examination
ER  -