Perera, J. L. C. S.Dissanayake, I. P. G. H. U.Gunawaredana, D. C. A.Gunaardena2024-10-222024-10-222009-12-03Peradeniya UniversitynResearch Session PURSE 2009, Book of Abstracts , University of Peradeniya , Sri Lanka ,Vol.14, 3rd December.2009 pp 340978-955-589-131-81391-4111https://ir.lib.pdn.ac.lk/handle/20.500.14444/2357en-USArticle