Lokuhewa, Sandaruwan ශ්රි ලංකාවේ උණුදිය උල්පත් = Sri lankave uNudiya ulpath - Nugegoda: Sarasavi, 2012. - 102p.; 21cm ISBN: 978-955-671-590-3 Subjects--Topical Terms: Land and Energy Natural ResourcesSri Lanka Dewey Class. No.: 551.235493 / LOK