Sowmiya, B. A.; Peter, S.(International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
Ilangakoon, M. T. S.; Weerabahu, W. M. S. K.; Wickramarachchi, R.(Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)