Wanigasekara, G.; Namawardana, D.G.K.K.; Wanninayake, W.T.M.A.P.K.,; Jayathilaka, K.M.D.C.,; Wijesundera, R.P.; Siripala, W.(Faculty of Science, University of Kelaniya, Sri Lanka, 2020)
Gurunanthanan, V.; Rajaramanan, T.; Uthayaraj, S.; Velauthapillai, D.; Ravirajan, P.; Senthilnanthanan, M.(Faculty of Science, University of Kelaniya, Sri Lanka, 2020)