Barnabas <br/><br/>
Khasi mental arithmetic na ka kynta ki skul bad kiba khali-pateng ha ki khasi bad Ri Synteng 
Barnabas and Nissor Singh 
 - 2nd. ed. 
 - [s.I.]  [s.n.]  1916 
 - (6),62p. ; 17cm. 
<br/><br/><label>Dewey Class. No.: </label>513.2  / BAR