著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Weerakkody, D. P. M.","Farmer-officer coordination to achieve flexible irrigation scheduling : a case study from system H, Sri Lanka",,International Irrigation Management Institute,1989,IIMI case study,,9290901136,,https://cir.nii.ac.jp/crid/1130282272711760128