Sinthujah, S.; Samarakoon, S. R.; Tennakoon, K. H.; Attanayake, R. N.; Weerakoon, G.; Gunasegara, D. S.; Paranagama, P. A.
(International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)