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The cost of production of rice in Kegalle and Kurunegala districts of Sri Lanka
(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 2005) Aheeyar, M.M.; Henegedera, G.M.; Rupasena, L.P.; Hector Kobbekaduwa Agrarian Research and Training Institute
The factors affecting the cost of production of rice in Kegalle and Kurunegala districts of Sri Lanka:consultancy report submitted to the National Science Foundation, Colombo
(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 2003) Aheeyar, M.M.; Henegedera,G.M.; Rupasena, L.P.; Hector Kobbekaduwa Agrarain Research and Training Institute