De Silva, N.T.M.H.Tisdell, C.A.2015-08-112015-08-111981Ceylon Coconut Quarterly, 32(3/4):p.72-79https://dl.nsf.gov.lk/handle/1/19934AgricultureClimatic factorsAgroclimatologyProductivityAgricultural economicsResponse of coconuts to fertilizer and advice to Sri Lankan growers:an aggregative approachArticle