Browsing by Author "Wijayaratna, C.M."
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Item Education and training of agricultural extension personnel in Sri Lanka(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 1977) Asmar, Samir; Gunawardana, A.M.T.; Nikehetiya, S.B.R.; Wijayaratna, C.M.; Agrarain Research and Training Institute