"Amarawansha, A." <br/><br/>
පිරිවැය කළමනාකරණය/ 
A. Amarawansha 
 - Rathmalana:  "Wishwaleka,"  1999 
 - 260p. 
<br/><br/><label>Subjects--Index Terms: </label>cost management 
<br/><br/><label>Dewey Class. No.: </label>657  / AMA