Dissanayake, U.I.Wickramasuriya, H.V.A.Wijekoon, R.2014-11-122014-11-122009Tropical Agricultural Research, 21(1):p.73-79https://dl.nsf.gov.lk/handle/1/12302AgricultureAgricultural informationInformation disseminationCyber extension unitsAgricultural extensionComputer -based learning materialsEvaluationFarmer trainingEvaluation of computer-based learning materials in agricultural information dissemination in Sri LankaA