"Pushpawelage, Sampath" <br/><br/>
ව්‍යාපාර අධ්‍යයනය/ 
Sampath Pushpawelage 
 - Nugegoda:  "Sarasavi Publishers,"  2018 
 - 222p. 
<br/><br/><label>ISBN: </label>978 955 31 1116 6 
<br/><br/><label>Dewey Class. No.: </label>658