Weerasinghe, W. R. H.; Shevkar, C. D.; Silva, R. S. De; Attanayake, R. N.; Weerakoon, G.; Kate, A. S.; Kalia, K.; Paranagama, P. A.(Faculty of Science, University of Kelaniya, Sri Lanka., 2021)
Suraweera, K. P. C. D.; Amarasekara, H. M. R; Tennakoon, T. M. S. G.; Wickramarachchi, S. R.(Faculty of Science, University of Kelaniya, Sri Lanka., 2021)