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Kurundankulama dry farming settlement:a socio-economic appraisal
(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 1977) Gooneratne, W.; Wickremasekera, P.; Samd, M.; Wijeratne, C.M.; Hector kobbekaduwa Agrarian Research and Training Institute
The effectiveness of agricultural extension methodology
(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 1977) Nikahetiya, S.B.R.; Gunawardena, A.T.M.; Asmar, Samir; Wijeratne, C.M.; Agrarian Research and Training Institute