Abeysiri, H. A. S. N.; Wanigasuriya, K.; Manage, P.M.(4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
Abeysiri, H.A.S.N.; Wanigasuriya, K.; Manage, P.M.(Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)