TY  - BOOK
AU  - Barnabas
ED  - Singh,Nissor
TI  - Khasi mental arithmetic na ka kynta ki skul bad kiba khali-pateng ha ki khasi bad Ri Synteng
U1  - 513.2 
PY  - 1916///
CY  - [s.I.]
PB  - [s.n.]
ER  -