TY  - BOOK
AU  - Khurana, KJS 
AU  - Markanday, R
TI  - Maths 30 days wonder
SN  - 9789352837557
U1  - 515.9 
PY  - 2022///
CY  - New Delhi
PB  - S. Chand publication
KW  - Mathematics
ER  -