Dissanayake, D.M.M.Premachandra, M.M.2022-02-092022-02-092003Annals of the Sri Lanka Department of Agriculture, 5:p.317-319https://dl-doa.nsf.gov.lk/handle/1/4192AGRICULTURE EXTENTION AND COMMUNICATIONAgricultureEducationUse of picket as a tool in agricultural extensionArticle