"Suriarachchi, D." <br/><br/>
පාරිභෝගික සත්කාරය/ 
D. Suriarachchi 
 - Nugegoda:  "Sunelak Prakashana,"  2001 
 - 192p. 
<br/><br/><label>ISBN: </label>978-955-0483-04-4 
<br/><br/><label>Subjects--Index Terms: </label>Customer care 
<br/><br/><label>Dewey Class. No.: </label>658