Pathiratna, L.S.S.Seneviratna, P.Waidyanatha, U.P.De S.Samaranayake, A.C.I.2014-07-082014-07-082006Ceylon Journal of Science(Bio sci), 35(2):p.141-148https://dl-rri.nsf.gov.lk//handle/1/2303Effect of tree density on growth, yield and profitability of rubber (Hevea Brasiliensis muell,arg.) in plantationsArticle