Rupasinghe, Ranjith <br/><br/>
අසන් සකිසඳ 
 Asan sakisanda 

 -  Sri Lanka guvan viduli sansthava  1999 
 -  90, 21 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication
<br/><br/><label>Universal Decimal Class. No.: </label>659.3  / RUP