Hatharasinghe, P.M.Sakuni; Dayasiri, W.H.C.N.Rajini; Kulathunga, G.A.Yasantha Ruwan; Balasooriya, B.A.Suminda Madhubhashana(Rajarata University of Sri Lanka, 2016)
J.E.M.C.L., Gunarathna; K.A.J.S., Jayasooriya(Department of Environmental Management Faculty of Social Sciences and Humanities Rajarata University of Sri Lanka, 2023-09-20)