Mendis, Mangala <br/><br/>
දිරි තරුණ 
 Diri tharuna 

 -  Author Publishing  2005 
 - 184p.,  22 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business <br/>Management
<br/><br/><label>Universal Decimal Class. No.: </label>65  / MEN