Gamage, S.J.K.Rupasinghe, M.S.Dissanayake, C.B.2016-05-062016-05-061991The Second International Symposium on the Geology of Sri Lanka:p.9https://dl-ifs.nsf.gov.lk/handle/1/1325Some vertical concentration characteristics of trace elements in gem-bearing sediments in the main gem field of Hattota Amuna, Sri LankaConference Paper