00426nam a2200121Ia 450000500170000000800410001708200140005810000170007224501210008926000580021030000110026865000250027920240821151646.0240821s9999||||xx |||||||||||||| ||und||  a372.7 ENR  aSurja Kumari 0aEnrichment training course for resource persons in mathematics at upper primary level (held on November 11-15, 1991)  aNew DelhibDeptt of Edu. in Sc and Math., NCERTc1991  a203+5p  aElementary education