Wanninayake, W. M. U. K.Seneviratne, V. N.Karunaratne, D. N.Perera, A. D. L. C.2024-12-052024-12-052009-12-03Peradeniya University Research Session PURSE -2009, Proceeding and Abstracts, Vol.14,3rd December , 2009 University of Peradeniya, PP. 253978-955-589-131-81391-4111https://ir.lib.pdn.ac.lk/handle/20.500.14444/4663en-USArticle