TY  - BOOK
AU  - NCERT
TI  - Workshop on mathematics for key persons at secondary level : orientation course for state resource persons of Orissa, Arunachal Pradesh, Meghalaya and Manipur
U1  - 510.7 WOR (N-R) 
PY  - 1992///
CY  - Bhubaneswar
PB  - NCERT, RIE Deptt. of Science
KW  - Mathematics- study and teaching
ER  -