Gunasekara, Saman Pushpa විශ්ව දැනුම = apa jiivathvana lookaya- 04: viSHva daenuma - Colombo: Godage, 2015. - 256p.; 21cm ISBN: 978-955-30-5738-9 Subjects--Topical Terms: General knowledge Dewey Class. No.: 001 / GUN