Bowatte, W. M. G. M. B.Ranawana, K. B.2024-09-112024-09-112009-03-12Peradeniya University Research Session PURSE- 2009, Book of Abstract , University of Peradeniya , Sri Lanka , Vol.14. 3rd july. 2009 pp 312978-955-589-131-81391-4111https://ir.lib.pdn.ac.lk/handle/20.500.14444/940en-USArticle