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 "Sēnānāyaka, Piyadāsa",Periodic rural markets in the Kurunegala District,,Agrarian Research and Training Institute,1980,Occasional publication series,,,,https://cir.nii.ac.jp/crid/1130282271224225280