Karunanayake,N <br/><br/>
Sannivedana vidhi 

 - Nugegoda  Media Publishers  1994 
 - 136 p ., 
<br/><br/> A Book of Communication Methods 
<br/><br/><label>ISBN: </label>955952268X 
<br/><br/><label>Dewey Class. No.: </label>302  / KAR