Bodhinayaka, Dhanasiri අභ්යවකාශ ඉතිහාසය = abhyavakasha ithihasaya - Colombo: Godage, 1995. - 54p.; 21cm ISBN: 955-20-1561-8 Subjects--Topical Terms: Astronomy Dewey Class. No.: 523.111 / BOD