TY  - BOOK
TI  - Ø¨ÚÚ¾ØªØ§ Ø¨ÚÚÛ Ø Ø¶Ø±ÙØ±ØªÛÚº Ø§ÙØ± ÙØ³Ø§Ù 
U1  - 305.231 
PY  - 1988///
CY  - New Delhi
PB  - National Council of Educational Research and Training
ER  -