De Silva,Aelion. සිංහළයෙන් සිප්යුරු වදන් Technical terms in Sinhala : Sinhalayen Sipyuru Vadan - Nugegoda Modern book Company 2002 - xiv,346p., 22 100: 955-558-083-9 cm Subjects--Topical Terms: Sinhala Language Universal Decimal Class. No.: 030.1 / DES