Chandrapala, W.Madhubhashini; De Silva, R.M.Bhagya Samurdhi; Premathilake, W.A.Amith Priyankara(Faculty of Social Sciences and Humanities Rajarata University of Sri Lanka, 2020)
Gunarathne, S.P.; Ekanayake, E.M.S.; Senadheera, P.S.R.; Udayakanthi, T.D.G.; Prasanna, R.P.I.R.(Department of Economics - Faculty of Social Sciences and Humanities Rajarata University of Sri Lanka, 2022)