Radhika, N.D.M.; Gunathilake, D.P.P.; Ragunathan, K.; Gunasekara, T.D.C.P.; Weerasekera, M.M.; Fernando, S.S.N.; Arawwawala, L.A.D.M.; Hewageegana, H.G.S.P.
(National Centre for Advanced Studies in Humanities & Social Sciences, Colombo 07., 2015-06-08)