Rajan, C.N. Deva <br/><br/>
වාණිජ අංක ගණිතය 
 Vaanija anka ganithaya 

 -  Deucation depatment  1963 
 - 432p.,  20 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial arithmatic <br/>Mathematics
<br/><br/><label>Universal Decimal Class. No.: </label>51.1  / DEV