"Karunaratna, K.R.M.T." <br/><br/>
business economics^osub mathematical applications/ 
K.R.M.T. Karunaratna 
 - Moratuwa:  "Karunaratne,"  2003 
 - 174p. 
<br/><br/><label>Subjects--Index Terms: </label>business economics 
<br/><br/><label>Dewey Class. No.: </label>330