Jayasinghe, C.V.L.; Gunathilake, K.D.P.P.; Jayasinghe, J.M.J.K.; Sukirtha, S.(Senate Research and Higher Degrees Committee, Wayamba University of Sri Lanka, 2017)
Dasanayaka, D.M.C.M.K.; Prasadi, V.P.N.; Wijewardane, A.; Jayasinghe, C.V.L.(Senate Research and Higher Degrees Committee, Wayamba University of Sri Lanka, 2017)