Ratnapala, Nandasena <br/><br/>
Aparada viddyave muladarma 1 

 - Warakapola  Ariya  1997 
 - 230p. 
<br/><br/><label>ISBN: </label>9789555530378 
<br/><br/><label>Universal Decimal Class. No.: </label>343.9(548.7)  / R17