Gunawardana, R.A.L.H.2015-03-102015-03-101987Gunawardana, R.A.L.H. (1986-1987). Seaways to Sielediba: Changing Patterns of the Navigation in the Indian Ocean and Their Impact on Precolonial Sri Lanka. Kalyani, Journal of Humanities & Social Sciences, University of Kelaniya, 05-06: 1-33.http://repository.kln.ac.lk/handle/123456789/5611enSeaways to Sielediba: Changing Patterns of the Navigation in the Indian Ocean and Their Impact on Precolonial Sri LankaArticle