Yohani, A. A. R .; Deeyamulla, M. P.(4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
Nirmani, L. P. T.; Deeyamulla, M. P.(International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)