Jayasinghe, U. J. M. S. R.Karunaratne, W. A. I. P.2024-09-112024-09-112009-12-03Peradeniya UniversitynResearch Session PURSE 2009, Book of Abstracts , University of Peradeniya , Sri Lanka ,Vol.14, 3rd December.2009 pp 292978-955-589-131-81391-4111https://ir.lib.pdn.ac.lk/handle/20.500.14444/952en-USArticle