Kuruppu, P.S.L.; Gurunada, G.H.D.J.P.; Maduwansha, N.A.N.J.(IRCHSS-2018 and Faculty of Humanities and Social Sciences, University of Sri Jayewardenepura, 2018-11)
Alutharachchi, D.; Udayarathna, K.; Dhanapala, W.M.(IRCHSS-2018 and Faculty of Humanities and Social Sciences, University of Sri Jayewardenepura, 2018-11)