Karunaratne, R. A. G.Weerasinghe, H. M. S. P. MadawalaLathiff, M. A.2024-12-052024-12-052009-12-03Peradeniya University Research Session PURSE -2009, Proceeding and Abstracts, Vol.14,3rd December , 2009, University of Peradeniya, PP. 188978-955-589-131-81391-4111https://ir.lib.pdn.ac.lk/handle/20.500.14444/4588en-USArticle